Days later after that unexpected visit from a late ally, Koushiro was busy working on his projects when he received an e-mail.

K. Izumi,
I have free time to talk, which means I'm able answer your questions if you're still waiting for.
I hope you have a good day,
D. Nishijima

"... I've been analyzing Taichi-san's story carefully to solve this mystery. I formulated several theories, some I dropped because they weren't logical enough to my taste-"

"We got it…" Daisuke seemed uninterested.

"Easy, Daisuke" Taichi with disapproval of that attitude.

"So, what have you discovered about teacher Nishijima's case?" And Yamato was the opposite of the young boy.

"He probably fainted due to the loss of blood, but there was the explosion mentioned by Taichi-san. According to my investigation, someone probably saved Nishijima-san before he died and-"

"Slow down" Taichi interrupted "I remember the fake Gennai had said something like that the lab would've exploded if we were sent back to the human world. I don't remember if it really exploded."

"... Do you know if they had done something to my body?" Daisuke asked with a quiet voice, and the boys looked at him in silence "I mean, I was inside one of those capsules… For three months, right? It was hard to get back to normal…"

"We could examine you" Koushiro smiled, but Daisuke gasped in panic "Okay, back to my hypothesis, Nishijima-san had been saved and then he was able to have a transition from human to Digital World being."

"Shouldn't we gather the others if we talk with him again?" Yamato opined "They'd like to know what happened to him as well. Especially her ."

"You mean Mochizuki-san?" Koushiro blinked.

"It was because of Meicoomon that Jesmon attacked and caused all of those."

"Look, I don't think Jesmon had the intention of killing me and our old teach" Taichi stared at Yamato, but not in disapproval but just him being serious about what he thought. Hackmon wasn't an enemy, neither Meicoomon, to him.

"It's all Yggy's fault" Daisuke clenched his fists "Yggy is the one who messed with Himekawa-san's head and made her try to eliminate us. Yggy is the reason Nishijima-san and Meicoomon are dead. Is Yggy's fault that Ken is blaming himself for things he hadn't done."

"Why did you give her a nickname?" Taichi was confused with Daisuke behavior.

"I can't say Yggy's full name" he pouted "Igu…Igi.. Iggy- What's that name again?"

"Yggdrasil" the older boys replied.

"I can't speak that name."

"Try it" Yamato ordered it.

"I tried and look at me!"

"Just TRY to say it again."

"Igu… Yggy?"

"You're not even TRYING hard!"

"H-how will it solve Nishijima-san's mystery, Yamato-san?!"

"I agree, you're changing the subject!" Koushiro seemed irritated with that hijack.

"I don't think Daisuke is unable to say Yggdrasil," Taichi interrupted them again "but maybe we can talk about it later. So you think teach was saved? By who?"

"... His digimon partner?" Daisuke mused "He said that his partner had told Anubismon to not delete his soul from the Digital World!"

"I forgot about that part… Wait, were you paying attention to him?!"

"Of course I did! If is not boring and it's interesting, I will pay attention to it!"

"That's something new…" Yamato shook his head very slowly.

"What?! Look, just because I get tired of school subjects which are not English and P.E. does NOT mean-"

"You two are changing the subject all again!" Koushiro growled.

"I-I'm sorry!"

"Wouldn't we call the others so we can talk to teach all together?" Taichi asked.

"Are they busy today?"

"T-Today?!" The other boys babbled.

"I have band practice in a few hours!" Yamato protested.

"I have physiotherapy today!" And Daisuke complained "I'm not totally recovered yet!"

"Hm… We can pass the information to them then" Koushiro mused.

"I think what Yamato and Daisuke meant is that they can't do it today…" Taichi tried to be reasonable, as much he wanted to know he wouldn't mind to wait for everyone. But Koushiro was full of energy and wanted so much to know.

Actually, Koushiro took a deep breath and glanced at the other two who had plans for today. He then just emailed Daigo asking when he would be free again to chat about it with all of the Chosen Children.

I'm not sure when, but I will do my best.
I'm sorry that you can't do it today, I understand.
Also, don't forget to go to school, eat a healthy meal and to sleep early.

That was Daigo's answer.

"He looks like my mom" Daisuke commented, while everyone was reading the e-mail.

"Well, he was our teacher after all…" Taichi sighed.

"If we can't do this gathering today," Koushiro glanced at the trio "Can we try on Sunday? Please?"

"I think we can" Yamato looked at Daisuke "Do you have any plan for Sunday?"

"Nope!"

"Then it's settled!" Taichi announced with a grin "We're talking to teach this Sunday!"

"I have to go now," Yamato took his suitcase "If you get any news, contact us immediately."

"... You can't say 'Yggdrasil' but you can say 'physiotherapy'?" Koushiro heard Taichi and Daisuke chatting while walking to the entrance, after Yamato "Also are you okay, can you walk by yourself?"

"I learned to say that word because I've been hearing it every single session" Daisuke answered "Yeah I can, at least I'm not on a wheelchair anymore. But I have to take baby steps until I fully recover myself. I was three months inside that pod! Thanks, Yggy… NOT!"

When the group left, Koushiro sat on his desk chair and decided to keep working on those theories. Tentomon jumped from the screen and glanced at the boy, but he was too busy to notice him. The bug-like digimon flew until the other side of the office and took something to eat. His human partner was too focused on that theory that...

"Are you still thinking of it?"

Koushiro suddenly opened his eyes and looked to the side. Tentomon was holding a bottle of Oolong tea, and handed it to his partner. When Koushiro realized, he had fallen asleep.

"Yes, I think…" He answered Tentomon, opened the bottle and drank a bit.

"Wouldn't you go home?"

"I'm fine, I told mom I spent last night at office."

"You should rest and wait until everyone's free to hear Nishijima-han's story."

Koushiro stopped typing.

"I know you're too curious to know, but sometimes you have to be patient."

"I… I'm…"

"It's okay to get excited, but please don't let it take control over your life."

"Thanks, Tentomon" he smiled "I will go home once I finish it and then try to tell the others to meet us here on Sunday."

Tentomon just chuckled and entered in Koushiro's laptop to the digital realm he had made a year ago for the digimon. After it, Koushiro closed the laptop, turned the computer off, closed the windows, took his suitcase, left the office and closed it.

"Ack, I'm so done for today…" Daisuke had arrived home and lied on his bed.

"How's the legs?" V-mon asked him.

"Better than before, but I guess I'm not ready to play soccer again… Maybe Taichi-san will have to teach me how to kick and all the things I've learned from him…"

"That's good! At least you will have more time with him!"

"The problem is… I dunno if he will have time to teach me all the things again. I guess I will have to ditch soccer for real and find another thing to do."

"Daichan, you have visit" His mom opened the door to the other two kids walk in.

"S-senpai, Hikari-chan?" Daisuke sat on the bed "What's up?"

"We came to see how are you" Hikari responded "Is it everything fine?"

"It's not like the time you sprained your ankle by playing soccer" Taichi reminded him "I mean, you…"

"I know, I know" Daisuke looked directly to his legs "I'm fine. The doc said I have to keep doing it for a while. But I'm better since I returned home! I can walk! But I can't run..."

"We're sorry about it" Taichi clenched his first. Hikari just avoided to look at Daisuke, with a frown that was clear what was going on inside her mind.

"I already said it wasn't your fault," he gave Taichi and Hikari a glare "Or anyone's. It's all Yggy's!"

"It's our fault, because we didn't notice-"

"It's not."

V-mon just panicked about the imminent fight inside the room. He then got hugged by Hikari, who started patting the digimon's head, trying to make him calm.

"There, there…"

Meanwhile, Daisuke and Taichi were staring at each other. One trying to convince another about who was the culprit for Daisuke's current situation.

Taichi just gave up on fighting, same said about Daisuke. The difference between fighting Yamato and fighting Daisuke is that Yamato has no fear of Taichi. While Daisuke has, and also there's the blind respect he had for the Chosen of Courage.

"I'm sorry, I didn't want to sound rude…" Daisuke babbled, ashamed of his behavior.

"It's okay," Taichi give him a pat on his hair "You're right, it's not your, mine or anyone's fault but Yggdrasil's. I should stop putting the blame on me. You also shouldn't put it on you either."

"Yeah, and this is for you too, Hikari-chan" Daisuke added, and the girl (plus digimon) gave him a confused gaze.

"Huh?"

"Yeah, Hikari don't put the blame on yourself too. This was all Yggdrasil's fault."

"I… won't…"

"Sooooo, how 'bout dining here today? Dad's workin' really late, sis' at a friend's house and mom won't mind to have some guests."

"We will tell mom then" Taichi accepted the invite "But you will have to feed Agumon and Tailmon too."

"I will prepare the food, and you're going to love it" he blinked, making hikari laugh. He blushed and V-mon laughed "I'm a good chef, I swear" then he got up from the bed, but he growled of pain.

Taichi tried to hold him, but he refused:

"I'm okay… It always… happens after the physiotherapy. The first days were worse than now."

"Don't force yourself" the three said.

"I know, I know..." he gave a nervous laugh to mask the pain.

The band practice was pretty… awful. He couldn't pay focus on it, and most the band was not in the good mood for his mistakes. Losing two chords and skipped more three in the next try.

"Yamato, we have to work harder for the next gig!"

Yamato was too distracted with Koushiro's excitement and theories playing in his mind. Would he want to know? Yes. But could he pay attention to the band practice right now? No.

"I'm sorry," he said "I'm not in the mood today."

"You could've said it earlier-"

"I thought I had energy for tonight's practice, but I was wrong. I'm sorry."

He left.