
what is this a dj of?

Yeah, doujinshis are mostly spinoffs
Doujinshi (同人誌), also romanized as dōjinshi, is the Japanese term for self-published print works, such as magazines, manga, and novels. Part of a wider category of doujin (self-published) works, doujinshi are often derivative of existing works and created by amateurs, though some professional artists participate in order to publish material outside the regular industry.

*NOT NECESSARILY* a spinoff
This might be quite confusing. I'll substitute doujinshi with its proper English equivalent term, so that I may put my point across. "Self-published works are mostly spinoffs" is quite erroneous. It would make more sense to say "Most spinoffs are self-published works". Do you know why most of the spin-offs and fan-made works are self-published? This is because if these kind of works were officially published in a regular industry, they will be hit by copyright or plagiarism laws since the art and story they are based on are intellectual properties.
This is just similar to webtoons and manhwas. Even when a scroll-down format comic does not originate from Korea, they are still erroneously referred to as manhwas since "Webtoons are mostly manhwas".
My point is, it's technically not right to directly assume and associate the word doujinshi to spin-offs and fan-made works, since doujinshis or self-published works are not only limited to such things.

bruh what happened to this story, it’s like they didn’t know what to do so they came up with a random suicide plot twist and tried to make it make sense but it literally doesn’t

okok from my understanding— when the two main characters were friends as children the older brother was still an obsessive psycho, and he put the death of the brown haired kids’ dad on the brown haired kid,, and basically manipulated him,
i literally don’t remember why black haired hotty hated brown hair?
but my guess is since that happened with the older brother brown hair filled his life with meaningless sex, that’s where the psycho friend came in.
and since he was filling his life with sex he felt ‘fine’ but when he didn’t have anyone to fill that and he had someone that cared about him, he’s afraid that he’s going to ruin black haired guy from what the brother said in the past??
and that’s why he wants to die— i think idk tho

I was vibing till the biphobia in ch 4, not gonna finish it now lol

if forgot since i dropped this a while ago, but either the seme or uke said they didn’t want to date bi guys purely because they like more than than just guys. since it’s fiction as long as you don’t carry their beliefs with you and also invalidate bi people you can continue, it just made me uncomfy

his feelings are valid but he doesn’t need to invalidate an entire community because of his person experience. would you not date an entire race because you dated one and had a bad experience? no. would you not date people with a specific sexuality because you had a bad experience? no. so kinda makes him biphobic. but then again like you said it’s literally yaoi and since i’ve read 1k+ stories i would know haha
yiyeon: is wearing a hoodie and sweatpants
chef: i should get him a blanket he’s gonna catch a cold
Cartoon logic 101