Assistant: It has been a few days since I updated, but if you don't remember. Ronomon had failed to tell me in advance that his sister, Renamon, was coming to visit. Ronomon has now spent the last few days making this house spotless. Isn't that right Ronomon?

Ronomon: I would have been done sooner if you had helped me more.

Assistant: You're lucky I helped you at all. I usually don't mind you having your sister over, but I need to be told about it earlier then a few days.

Ronomon: Well I told you I only knew a few hours before I told you. She had just called me up, saying she was coming to town and needed a place to stay.

Assistant: Well, I guess I understand then, but enough of that. It's time to start the 4th chapter, but before I do. I don't own digimon or the two shows where I get my concepts of alchemy and elemental bending. Those two shows are Full Metal Alchemist and Avatar, The Last Air Bender.

Ronomon: Now, let the story continue.

Chapter 4

Day 1, Temporary Changes

The clocks alarm rang through Yamachi's house at 7:00 am on the first day of the five days it would take for the digimon to be converted into their new formats. Yamachi smashed the snooze button and got out of bed. He took a quick shower and was in his usual formal business attire in 35 minutes. He walked into his small kitchen to find a plate of eggs, bacon, and toast sitting on his dinner table. He cracked a small smile and said, "How long are you planning to do this for, I would hate to get used to your cooking and them have you pack up and leave."

Ronomon quickly appeared in the room in the same style as Renamon and said, "Well as long as I am a guest in your apartment it is my small way of showing my appreciation. I would like to join you for breakfast, but I have an appointment to keep, several appointments for a matter of fact."

"What do you mean by appointments?" Yamachi said taking a bit out of the toast.

"Well the reverse biomerge spell had an option I took advantage of. Instead of trying to get all the tamers into the same room for me to explain everything appropriately I have used this option to make it so they will each wake up this morning at set times, making it so I can give each one an explanation appropriate for the effects of their reverse biomerge. So if you will excuse me Rika and my dear sister are due to be the first to wake up at 7:45."

"Well you have about five minutes now. You better get going." Yamachi said finishing the last bit of his toast and starting into the eggs.

"I'll be done by 1:30, where will I find you."

"I'll be at the Hypnos building until about 12:30 making sure the network is set up correctly, and be back here by 12:45. If you haven't found me by then I'll wait here for you to be finished."

"Then I will see you then." With that Ronomon used his shadow bending powers to disappear into the shadow Yamachi was casting on the floor and reappeared under a tree beside Rika's house. With one smooth leap he jump over the wall and landed silently one the grass. He looked up at the sun and gauged by its position that it was just at 7:45. He was right when he heard rustling coming from Rika's room. He walk near the door and leaned against the wall waiting for the inevitable. Rika had just stepped out of bed and was walking to her bathroom to splash some cold water on her face. She never looked up until she had given herself 4 good splashes. When she did she didn't believe what she saws, she rubbed her eyes again and looked in the mirror. Ronomon was still waiting outside when he started to say, "3…2…1…" and when Ronomon should have said zero a loud scream was heard coming from Rika's room. She then ran out side in her pajamas and ran up to the pond to see if someone was just trying to play a trick on her, but her eyes met the same image in the pool. Her reflection looked back at her in the pool, her face normal as usual, but instead of her ears she had someone else's, Renamon's. She then turned realizing Ronomon was standing their. He started walking toward her and said, "Behold the effects of the reverse biomerge. You have now taken on some of the traits of my sister. You have noticed you have her ears, but you if you look you will see you have Renamon's purple arm guards, her tail, and her legs." Rika looked to see Ronomon was right. On her arms were Renamon's purple arm guards. She felt around her back and was quickly able to find she had grown a tail exactly like Renamon's, and she lifted her pant leg to confirm that she did have Renamon's legs and waist. She then saw Ronomon pick up Rika's D-Power of her night stand. She turned to ask what he was doing when she saw her D-Power start to glow and then change into item that looked a lot like a digital wrist watch.

Rika stared for a second and then shouted. "What have you done to my D-Power?"

"Calm down Rika, I will return it to normal once I have reformed Renamon into her usual self, but now it will serve as a moderator between your spirit and Renamon's." Ronomon said as he started to walk toward Rika.

"What do you mean?" Rika said in an accusing voice.

"I mean that not only is Renamon's data in your body, her spirit is in their as well, and right now she is quietly waiting in your brain for a chance to talk to you. This device I call the D-Switch." As Ronomon said this he placed the device under Rika's new arm guards and around her wrist

"The D-Switch?" Rika said this and looked down at the device. All it had was a small screen that had her name displayed on it. Under that screen two small square buttons, one red and one blue. The red one currently had a light glow to it. She looked up at the blue fox digimon with a quizzical look.

"Here, let me explain. I want you to try something for me. I want you to close your eyes and think about something as if you were saying to Renamon. Talk to her as if she was standing right beside you, but don't say it out loud, just think it."

"Why should I do that?"

"Just do it, you may be surprised."

Rika didn't get why he was asking her to do this, but she decided to try it. She closed her eyes and thought, "Huh, so Renamon, how have things been?"

"Oh it has been just wonderful Rika, thank you for asking."

Rika's eyes quickly flew open, had she just heard Renamon's voice in her head. Ronomon saw the surprised look on Rika's face and said, "Yes, you did just hear Renamon. That is how you can communicate with her, but you can do it without closing your eyes. I just had you do that, thought it would add to the effect. Now I need you to push the blue button on your D-Switch."

Rika did as she was asked and pushed the blue button and suddenly felt the sensation as if she was moving. When she got her senses back she looked around and saw she had been taken to some sort of control room. She also noticed that her body was back to normal, she didn't have Renamon's arm guards or her tail. She looked around; in the corner of the room was a door, when she looked inside it she saw a small room with a bed, a kitchen, and another door that she assumed lead to a bathroom. She closed the door and saw a giant window in the room. When she looked through it she realized that it was her house on the other side of it. She then saw the window grow dark, as if the window was lowering a shutter and then, all of the sudden she felt the same sensation of motion, and when she opened her eyes she saw she was back in her own back yard. She also noticed she, once again, had Renamon's features like her ears. She looked back towards Ronomon. Ronomon gave her a gentle smile and said, "So how was my second soul room. I'm not that great at decorating so I made it so you can modify it with your mind. All you have to do is think about a change and the change will occur, within reason."

"What just happened to me?"

"Your soul was sent to the second soul room that has been created in your mind." Ronomon responded, "That is where Renamon lives while you are in control of your body. That is what happens when you press either the Blue or Red buttons on the D-Switch. It switches who's in control of the body, while the other waits in the soul room. When the red button is active you are in control, but when the blue button is active..." Ronomon stopped his speech and pushed the blue button on Rika's. She was once again whisked away to the soul room, and she then started to hear Ronomon's voice over the speakers suspended on the wall. Ronomon continued, "As I was saying when the blue button is active your spirit is put in the soul room and Renamon takes control of your body. Hay, Renamon, why don't you talk to Rika for a few minutes, but don't talk for to long. I need to keep my schedule of visiting your fellow tamers and giving them a similar explanation, and I was hoping to have you two help me do it. Some of your allies aren't as level headed as you are when it comes to things like this."

Rika then heard Renamon's voice over the speakers and saw that, through the eye window, Renamon had turned to face Ronomon. Rika then heard Renamon say, "I'll try to keep our meeting short." Rika then saw the eye window grow dark and she watched as a hologram of Renamon become visible in the middle of the room.

Renamon was the first to speak, she said, "Rika, how long has it been since we have seen each other?"

Rika responded "It's been one month in the real world, how about the digital world?"

"It's been a month there as well," Renamon said. The two were silent for a moment, they both began to cry. Rika turned her head away, trying to hide her tears, but Renamon could tell how Rika felt because she felt the same way.

The two were silent for about a minute, but then Rika finally said, "Oh Renamon, I've missed you so much." Rika quickly began to run toward Renamon, but when she went to hug the vixen digimon her arms passed right through her. They both looked, the tears welling up in their eyes more the before. They then heard Ronomon say, "Sorry, but you can't make contact with each other while the body is awake. Try it again once one of you has put your body down for the night. All you need to do to put the body to sleep for the night is to depress the button of who ever is in control so neither the blue or red buttons are illuminated. This will cause you both to appear in the soul room. This will allow you two to hug and do all that fun stuff, but I must intrude. I have a schedule to keep, and you have yet to tell me if you are planning to give me a hand with the rest of tamers."

Rika took control of the body again and said, "We have decided to help you, but Renamon will be the one in control while you are traveling. I don't know how to move like her."

"I understand, it will be nice to see if my sister can still beat me in a race; you up for it Renamon."

Renamon now took control of the body and said, "Just tell me where we are going, and I'll beat you there with a minute to spare."

"Glad to hear it my dear sister, we are heading to Takato's. Ready…Set…GO!" With that Ronomon was off, with Rika/Renamon right behind him. They day continued in much the same way. When they arrived at each tamers house they saw the changes that occurred to them and gave them the same run down as Ronomon had given to Rika/Renamon. Rika and Renamon were amazed how lucky they were. If Rika was to wear the right clothes she and Renamon could walk down the street without raising any suspicion, but some of the other tamers weren't as lucky. Takato's skin had turned red, he had Guilmon's odd ears, and he had grown two long thick claws on both of his hands. Henry's skin had turned white with green markings like Terriermon's, and he also grew Terriermon's ears. Suzie had undergone similar changes, but with Lopmon's features instead of Terriermon's. Ryo had grown Cyderdramon's wings, claws, and had become clad in his armor. Kazu had become covered in armor that made him greatly resemble his partner Guardromon. Kenta was lucky like Rika, and all he had happen to him was that he grew a giant red heart on his chest, and Marineangemon's skin color. Then they got to Jeri. Jeri's hair had grown long enough that it reached her waste. She had also gotten taller, and had taken on Leomon's skin color. She also had found she had Leomon's sword on her belt and some of his other clothing. Finally they got to Ai and Mako's house. Marco had taken on some of Beelzemon's traits, which Ronomon had found odd, but accepted. While Ai took on the traits of Calumon, this was because of the fact the two humans had shared Impmon as a partner. This left one of them was an open space during the procedure, so Ronomon decided to allow Calumon a chance to return as well, so he had talked to the pair of tamers before he had done the reverse biomerge spell. Ai had agreed to be Calumon's host while his data was being converted. Ronomon and Rika/Renamon had returned to Rika's house around 1:00 in the afternoon.

Ronomon turned to his willing assistant and said, "Thank you, with your help as a speaker and visual aid I am done about fifteen minutes earlier then I expected. I must say, Renamon you were a little slower on the return trip, why is that.'

"Who said Renamon was in control on the way home," Rika said as she turned to smile at the slightly startled blue fox.

"Well," Ronomon said, "That would explain it. I must applaud you Rika; you did very well for what I assume was your first time."

"Yes, it was my first time, and thank you for the complement, but now I have to go tell my mom and grandma about this."

"Oh, don't worry about that, they have a full understanding of the situation as do all the parents and family of the tamers. Well good bye Rika, Renamon. I will see you to in the morning."

"What do you mean by that?" Rika asked

"Well this is a very, very powerful and advanced spell. I just want to keep tabs on the progress of the spell with each tamer, and hopefully take care of any unforeseen problems. Well, till tomorrow you two, don't stay up to late. You need your rest, and that shouldn't be a problem. If you do recall from earlier I told you what happens when the body is asleep." With that Ronomon stepped into the shadow of a tree and melted into it, leaving Rika/Renamon alone in the garden. Rika just sat their looking at her reflection in the water. She couldn't believe what had happened over the past day. She had seen Renamon again, and they were actually biomerged together, though not in the usual way. Rika turned and headed inside the house where her mother and grandmother were just sitting down to dinner. They turned to look at her when she came into the room, but Rika was amazed at how they looked at her. Not in surprise or anger about what she did, but in a calm, understanding way. They knew that after 4 more days they would have their Rika back and she would have her best friend and partner back. Rika sat down and began to eat, the whole group was quite for a while when Mikino finally broke the silence and said, "So where were you all day?"

Rika turned to her mother and said, "Ronomon came by right when I woke up and filled me in on what had happened to me and the functions of the D-Switch. He then asked me and Renamon to help him give the same explanation to all the other tamers. According to Ronomon they seemed to take it a lot better after seeing how it wasn't just them, but that all the tamers had gone through similar changes."

"You mentioned something called a D-Switch. Yamachi told us what it did, but were still a little confused about it. Can you explain it again?" Rika's grandmother, Seiko, asked.

"Sure," Rika said, "Depending on which button I press on this device it changes who has control over my body, or should I say our body. Here I'll show you." Rika then moved her arm guard out of the way and pressed the blue button. Mikino and Seiko watched as Rika closed her eyes and then opened them. The two then noticed that Rika's eyes had changed. They were not her violet eyes, but a solid blue color. They looked at Rika for a few moments when Renamon, who had control of the body now, said in her usual cool voice, "Hello again, it is nice to be able to talk to you and Seiko."

"What are you taking about Rika; you were just talking to us." Mikino said with a quizzical look on her face.

"Your right, you were just talking to Rika, but you aren't talking to her right now, you are talking to me, Renamon."

"I think we get the D-Switch now, but where is Rika right now?"

"She is in what Ronomon called the second soul room. It is a place in the human brain where someone can store a second soul. It's what allows some people to have duel personalities. Rika is in their right now, and don't worry. She is comfortable in there. I know I am when she has control over the body."

"So," Seiko asked, "Either you are in control of Rika's body, or Rika is, but can you both be in control at the same time."

"No, we can't share control," Renamon said, "but, we can make it so neither of us have control."

"What would that accomplish?" Mikino asked.

Renamon responded, "That is how we can let Rika's body sleep. When neither of use are in control of the body the D-Switch puts the Rika's body to sleep."

"How do you wake up then? With neither of you in control, how are you supposed to press the blue or red buttons to resume control, and wake the body up."

"Ronomon didn't tell the tamers this, but he told the digimon. When it is time for one of us to resume control of the body a pair of buttons will appear in the Soul room. They will act like the red and blue buttons on the D-Switch and one of us will be put in control of the body depending on which on of the buttons is pushed. The buttons disappear when someone is control, and control of this function is returned to the D-Switch's physical buttons."

"Well, that is good to know, thank you Renamon. Would it be all right if could talk to Rika for a while now?"

"Of course." Renamon said as she pressed the red button on the D-Switch. Her eyes closed for a second, and when they were opened the eyes had taken on Rika's violet coloring.

Mikino put her hand on Rika's shoulder and said, "Is that you Rika?"

"Yes mom, it's me," replied Rika as she looked up toward her mother.

"Well this has all been very informative." Seiko broke in, "but our dinner is getting cold." The three of then continued their meal in relative silence except for the occasional blurb about the recent events in town. Most of the other tamers had the same situation, except Terriermon and Impmon were annoying Henry and Marco out of their heads with their constant chatter, and Takato was going nuts because Guilmon kept asking Takato if they could have some bread and peanut butter.

Assistant: Well I hope you enjoyed chapter 4 of reverse biomerge. Don't worry, plenty of action will be coming up in the next chapters, I promise. I just needed to use these chapters and maybe some of chapter 5.

Ronomon: Also, by the time chapter 5 is over are house guest will be here.

Assistant: Then you better finish cleaning. Those dishes still need to be washed.

Ronomon: Fine!