The powers weren't explicitly said to give that level of power to each person who only used it once. The ones who were corrupted by it were the ones who kept using it more than the last user.
Delta did have a constant human user near the ending though. And he never showed any effects from the corruption or the special powers.
Of course Hanagata is going to tell him to fight. He would die without fighting.
Why would he die without fighting? According to what is revealed later, Hanagata already knew about the Orphenoc cells dying ever since he left. So, there's no reason he should have told Kusaka repeatedly to fight. It just makes no sense at all. The fact that it gets completely ignored later just makes it worse.
Later he warns Kusaka of the Kaixa Gear because Kusaka overuses it. Inui Takumi and Mihara could fight instead of Kusaka. I don't see how that's so difficult to understand.
Because Hanagata speaks two completely contradictory things with no difference between both situations and no one says anything about it?
He wanted to forget. It was buried deep within his memory, but he didn't want to remember.
He failed to save some strangers and ended up so traumatized by that he was unable to be sure he wasn't the one who killed them? If his mind were that fragile, I don't see how the hell he endured being Faiz throughout the show.
They later found out who they were and they continued to comfort each other as they did before their involvemen with the Orphenochs.
That's the problem. The idea of them exchanging messages only returned to set up the story about those two meeting each other. It was completely unnatural.
Kusaka was tired of trying to create his sneaky situations since they didn't work as well as he wanted them to work.
His new atittude didn't help him with anything though.
Please rephrase this. I'm not sure what it exactly means.
Smart Brain constantly gave new equipment to Faiz and Kaixa though the show. I don't think I need to point out why this is a problem.
Like I've said before, Hanagata explains the belts, but the other equipment pieces have no excuse.
So Birth probably is going to do everything Kougami says.
If he's Goto, I'm pretty sure that won't happen, considering his recent outbursts.