Atsushi and Akutagawa

Atsushi's information
Name: Atsushi Nakajima
Appearance; he has light gray hair, pale skin, and is of average height with a thin build. He has segmental heterochromia, consisting of purple with yellow along the lower curve of his pupil. His hair is short and styled forward in loose spikes with a long strand on the right side of his face and a black strand...
Personality: Enthusiastic, passionate, kind, caring, naive, somewhat insecure, strong moral character, constantly haunted by memories of the abuse he suffered in his orphanage.
Ability: Can transform into a white tiger; usually transforms specific parts of its body, such as hands or legs, to increase its strength. This power is called "Beast Under the Moonlight".
Likes: chazuke, cats, chameleons, Yokohama
Dislikes: the same one, the orphanage where he grew up.
He is a member of the Armed Detective Agency and constantly argues with Akutagawa.

Akutagawa information:
Name: Ryunosuke Akutagawa
Personality: serious, bad-tempered, ruthless, violent, obedient to his superiors; whenever he encounters Atsushi, he tries to kill him.
He/She is a member of the Port Mafia.
Appearance: black hair with white tips, grey eyes, pale skin, thin.
Likes: figs, tea, antiques, curiosities
Dislikes: the bathroom, bathing, dogs, plants
He believes the weak should die, he doesn't discriminate when killing, he doesn't like being without his coat because he feels unprotected, his power is "Rashomon"—it transforms his coat into a dark monster capable of cutting anything. His mentor is Osamu Dazai, who always gives him brutal training where he is mercilessly beaten and even insulted. What he wants most is to become stronger so that Dazai will acknowledge him.