Responses
Many readers are just "oh my baby badass Jin when will you get your Charin back and have a lovey-dovey life, you always have been right, and I hope green hair and Tehir die". I love Jin but this story has an actual plot, very good worldbuilding, several interesting and complex main characters -- it's not just about Jin x Charin and their relationship.

kimoto is a a parasite bug from a demon’s brain. silver hair is the heart. silver hair was psycho as a kid. tehir gets stronger the more narcissistic he is (big ego = big halo). silver hair don’t like that tehir was basically using kimoto to feed his ego, because silver hair related to kimoto since they both demon parts. so silver hair broke tehir by making him paralyzed, which completely shattered his ego, thus making tehir powerless. kimoto liked tehir but after finding out that he was actually a bug, became depressed. he accidentally slips that he liked tehir for 10 years, which feeds tehir ego, thus why he regained power (halo) for a moment. however kimoto still depressed and knows tehir loves himself not kimoto, so kimoto embraces becoming bug. blue hair evil guy wants to use tehir to revive charin, probably because they r related (both have blond hair red eyes and red bumps)
kimoto and tehirs story is honestly pretty interesting and sad, stop ignoring the plot guys