Krizantem
Its pretty good. But. Why mc want to have limitation to his nen ability? Just because he don't want it to become something like he can toy it with anything? Does he don't want to create anything he want with it? Mc has system, it clearly said that he can create any ability. But mc said he don't want it, he want to have a limit? Tsk. If that the case, better throw the system aside.