Rinsama_'s manga / #Parallel world(1)

someone else's summary here -> " 1) Rivals to lovers scenario; with a twist of getting a taste of it from a parallel world. Mc and ml were rivals, but when the mc got hit on the head with a ball, his consciousness travelled to a parallel world where him and the ml were lovers; what's more, he realized this because they were in the middle of sex! Days passed and he finally got accustomed to this new world and their relationship, but when his feelings started to grow, he returned to his old world. I wish this story in particular was longer TwT I still loved it tho Oneshots: 2) Voice Fetish. Mc has a voice fetish, he meets a quiet masked guy, and accidentally hears his deep voice. This is when I wish this wasnt a manga xD I wanna hear it as well! 3) Best Friends. Mc realizing he is in love with his friend soon after his friend asked him for some love advice. Cute and simple :3 4) Strong/Chubby bodyguard x pervert. A bodyguard gets molested by a pervert with a chubby fetish. He needs his own bodyguard xD "