Wicked132
will the mc learn seimei kikan(Life Return) to improve the hercules method? Life Return allows you to control your hair, which the hercules method Cannot, In a fanfic I saw a non-canonical explanation that life return users can control their hair (considering they don't have muscles) via the One energy system (the haki) it was in the fanfic called one piece celestial rose chapter 7 and 10
Remember, Mr. Author, that the book gave the user visions to dehumanize all people (it is shown in the comic how Luther tears apart everyone around him during his vision, and also sees them as a skinless body, just muscles and clothes) this also numbs the protagonist to death and blood (as shown during Luther's fight against the librarian, the latter makes the former kill his mother and Luther doesn't care as much)