Haruka Iseumi

Haruka Iseumi (ハルカ) is a student at Fourth East High School, where he is the president of the Devil Hunter Club and student council, following the former class president's death. He claims to be the Chainsaw Man but in actuality, he is an obsessed fan of Chainsaw Man.

Appearance
Haruka is a slim young man who wears a bandana, an all-black uniform, and a military cap with a symbol. He has black hair combed to the side of his face. He has a pull cord in his chest identical to that of Pochita's in Denji's chest, later revealed to be a surgical implant.

Personality
Haruka seems to be benevolent and prideful on a surface level; he has a habit of constantly introducing himself in an extravagant manner and he holds his position as president of both the student council and the Devil Hunter Club in high regard. As of such, he tends to lead those around him, instructing others on how to handle a situation, utilising their skillset to their advantage.

However, he can also be very demeaning to those he views as having no worth to the club, such as when he berates Asa for accidentally destroying her phone when she tried to help out. It's also shown that he can be fairly manipulative, lying to others that he is indeed the real Chainsaw Man, likely in order to boost his own popularity. However, when cornered in the aquarium he easily admits that his ripcord is simply a surgical implant and reveals himself to simply be a massive fan of the Chainsaw Man, crying and calling out to him for help.

History
Haruka greets Asa along with the other members of Devil Hunter Club. When Yoru asks him if the Chainsaw Man is a member of the club, Haruka lifts his shirt to show a pull cord in his chest; then, he claims to be the Chainsaw Man.

Trivia

 * The kanji used in Haruka's surname are part of one spelling for the Japanese Spiny Lobster, . However, when read more literally it can translate to "The One Ocean Energy" or "The One Ocean Force"

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Исэуми Харука