Responses
One of these maybe
https://www.mangago.zone/read-manga/haikyuu_connection_doujinshi/
https://www.mangago.zone/read-manga/haikyuu_dj_fire_starter/
https://www.mangago.zone/read-manga/haikyuu_dj_there_s_still_a_long_way_to_go_until_they_kiss/
https://www.mangago.zone/read-manga/haikyuu_do_you_know_anything_about_tpo_kageyama_kun_doujinshi/
https://www.mangago.zone/read-manga/haikyuu_dj_accidental_chuu/
https://www.mangago.zone/read-manga/haikyuu_kiss_and_next_doujinshi/
https://www.mangago.zone/read-manga/haikyuu_dj_king_s_kiss/
The beginning of the story was how hinata was curious about kissing stuff then kageyama said his experience and that it was disgusting and slimy. Then hinata asked to try it with him. Then story continued. Plsss help me find it ╥﹏╥