Responses
if we’re not including djs then i’d say this one! https://www.mangago.zone/read-manga/can_t_take_my_eyes_off_you/
I've been into BL since the mid-early 2000s. it all seems like a blur to me now, but the first ones I remember are "Okane Ga Nai (No Money)"; "Junjo Romantica"; "Seitokaichou Ni Chuukoku (Hey, Class President)"; and "Koisuru Bokun (The Tyrant Falls In Love)"
mine was the novel, grandmaster of demon cultivation aka “the untamed”