This entire main cast is weird and becomes weirder the longer story goes
Especially Azuma
>initially depicted as your typical "MC's perfect friend" with top tier grades, strict family and a father who keeps him under thumb
>the second MC gets out of his shadow and finds his own path, starts being a little petty bitch, prompting MC to put him in place
>develops an enormous crush on a strict tomboyish girl who never takes any of his shit and can put him in place too
>his behaviour was actually a subconcious call for help, he's not even a real human but a self-perpetuating clone of an X-Men Hitler who tried to cheat his own death by creating a bunch of clones capable of full body reset in case they grow too old or lose control over their body, but failed to transfer his own soul into them, so his existence is meaningless
>he never had a family, it's all a part of his "programming", his father figure is implied to be a shard of his previous self yelling at him to not deviate from normal life, or he will get reset again
>MC and fMC are actually his only real human contacts, he's suconsciously scared of losing them because he has nothing and he IS nothing, and he likes Ely because she always stops him from taking the wrong path and forces him to be a better person