The Uppermoon Demon Slayer

Haru a 20 year old demon slayer that struggles with a disorder that makes him stutter, he gets passed final selection and then on a mission faces Akaza (Uppermoon 3) who wanted Haru to become a demon and Haru denies his offer Akaza was annoyed by his refusal to turn into a demon Akaza then forcefully makes Haru become a demon which afterward Haru almost got killed by him and then from further on Haru was not able to be in sunlight for over 5 hours and makes up his own breathing technique and arts and which he defeated former Uppermoon 5 Gyokko and took his rank, which also he climbs the rankings in the demon slayer corps and becomes a Hinoto and he falls in love for a certain demon slayer it may not be who you think it is