Explanation
Ichigo's P.O.V
Chad and I enter the Soul Society. "I think that the gas is still in the air." I said. "I think it's the fog that is surrounding everything."
"I think you're right," Chad responded.
"Ichigo, Chad," Renji said while coming up to us. "You're back so soon."
"How come you came back just after one day?" Rukia asked.
"We wanted to check something out." I answered.
"You mean the Reishi explosion?" Renji asked.
"Yeah," I replied.
"Renji, Rukia," Someone said.
"Hey Hiroji," Renji said.
"Didn't I see you the other day?" I ask.
"Yeah," Hiroji said. "Everyone is still trying to figure out the explosion." Hiroji said sounding real concerned.
"Is something wrong, Hiroji?" Renji asked.
"Not at all," Hiroji answered. "Why?"
"It sounds like you are worried about something." Renji wondered.
"It's nothing, really." Hiroji said. "I just was wondering when all of this Reishi is going to disappear."
"Captain Kurosutchi is trying to figure out how this all happened since it came from his lab." Renji said.
"You're usually in your Bankai form," Rukia said.
"I just didn't feel like it today is all." Hiroji said.
"That's a first," Renji said. "Whenever I see you Abekku is usually in your place."
"What are you talking about?" I ask sounding confused.
"My Zanpakuto, Abekku, can be in my place when I use Bankai." Hiroji said. "I find it easier for my Zanpakuto to know the area and what's going on since it's harder for Abekku because he's a Zanpakuto."
"I see," I said. "Shouldn't we check to see what cause the explosion?"
"I mentioned earlier that Captain Kurosutchi is taking care of it." Renji said.
"Yeah, but I want to figure something out for myself." I said.
"You sound really tense Ichigo." Rukia said. "What's wrong?"
I don't want to show them because I don't want anyone about Zangetsu taking over my arm. "I'm fine," I said.
"Are you sure?" Rukia asked. "It seems that something's really bothering you or else you wouldn't come back the day after you left."
"I didn't want to bring it up but…" I said. I rolled my sleeve up to show them. "Zangetsu seems to be taking over my arm."
"How's that possible?" Rukia asked.
I put my arm down. "I don't know." I answered. "Ever since I came home from the Seireitei Zangetsu has been taking over."
"I don't think it would be best to talk to Captain Kurosutchi about this." Renji said. "He might turn you into an experiment now."
"We should go to Captain Unohana about this, don't you think?" Rukia asked.
"I don't want to be a bother." I said.
"You are never a bother to us Ichigo." Rukia said. "Let's go before something strange happens."
"Alright then," I said.
"You coming with us Hiroji?" Renji asked.
"Sure," Hiroji said.
We all go to Captain Unohana to show her my arm. She showed us into a room where all of us could talk. "So, this happened right after you left?" Captain Unohana asked.
"That's when I noticed it." I answered.
"Where were you that night of the Reishi explosion?" Captian Unohana asked.
"Near the Research and Development building, why?" I ask.
"That's where we discovered the start of the explosion." Captain Unohana responded. "And my guess is that you and Chad swallowed the most of the Reishi."
"So, are you saying that's what has affected me and Chad?" I ask.
"Most likely," Captain Unohana said.
"Wait a minute," I said. "Hiroji said he was near the Research and Development building as well."
"He was?" Captain Unohana asked.
"Yeah," I said.
"I was nowhere near that building." Hiroji said right away.
"You just said that you were near that building." Renji said.
"I didn't say that." Hiroji said. "You just miss heard me is all."
"I don't think I miss heard you at all." Renji complained.
"Your Zanpakuto can take your place, can't it?" Captain Unohana asked.
"Yeah, why?" Hiroji said.
"Were you asking your Zanpakuto to go back into its original form?" Captain Unohana asked.
"Why are you asking me this?" Hiroji asked.
"Ichigo's Zanpakuto is taking over him and we'd like to know if your Zanpakuto is asking him to." Captain Unohana said.
"I don't remember going through that building that night," Hiroji said. "Not until my Zanpakuto disappeared."
"So, we didn't miss hear you earlier." I said
"Yes," Hiroji said. "My Zanpakuto can make my mind go blank when he's in my place. My guess is that Abekku, my Zanpakuto, wanted to explore in the Research and Development and cause damage and this is what he came up with."
"Then where is your Zanpakuto now?" Captain Unohana asked.
"I think that's when I was telling him to go back into his sword form that he separated himself somehow." Hiroji said. "How I don't know but then he went into the gas and since you swallowed it each of you must have gotten his power."
"And by that you mean he made our Zanpakuto's take over us?" I ask.
"Looks like." Hiroji said. "And it's not my fault. Abekku was in a spirit like state when the Reishi was exploding."
"So, when the gas of Reishi was being released your Zanpakuto became a part of the Reishi?" Captain Unohana asked.
"I think so." Hiroji responded. "I had no control over myself when Abekku decided to go in the Research and Development building."
"At least we know what is causing Ichigo's Zanpakuto to take over." Captain Unohana said. "With that I think we all have to be prepared when our Zanpakuto's take over."
"Are you serious, captain?" Renji asked. "Will all of our Zanpakuto's take over?"
"Probably," Captain Unohana said.
"Then why is Ichigo the only one that has his Zanpakuto taken over so far?" Rukia asked.
"Maybe it's because he's a Substitute Soul Reaper." Captain Unohana said. "And he was the closest one to the Reishi besides Chad."
"The Reishi has affected me to." Chad said. "My leg is turning into a hollow since I have that power."
"What will happen to Chad once the hollow takes over?" Renji asked.
"Don't know for sure," Captain Unohana said. "Hopefully he goes to Hueco Mundo so he can come back to The World of the Living."
"Should we…tell Captain Kurosutchi about Ichigo?" Hiroji asked. "I mean he might be able to find a way to reverse it."
"I rather have Zangetsu take over me then be turned into an experiment." I protested.
"We should take you to Captain Kurosutchi's anyway." Captain Unohana said.
"I have one question." I said. "Where was Captain Kurotsuchi in all of this mess the other day?"
"I think I heard people say that he was going to find some more hollows to research on and all of the workers went with him as well." Renji said. "But that's what I heard from other people."
"I see." I said.