Kimagure Goshujin To Oshikake Neko
"cat" turns into "human" and shows up at human's home, but he ends up being an actual human who is heir to a major conglomerate; both uke and seme crave human warmth
Meguro to Akino wa Kizukanai
gay uke and straight seme are neighbors but they don’t realize they’re in love with each other even though they prefer each others’ presence and do sexual things with each other
Kage no Jitsuryokusha ni Naritakute
MC with chuuninbyou thinks he's roleplaying with his harem about defeating evil from the shadows, but he doesn't know that he's actually defeating real evil
Saru to Momo
momotarou story but yaoi instead with momo x monkey king and gay grandparents
Tatoeba Last Dungeon Mae no Mura no Shounen ga Joban no Machi de Kurasu Youna Monogatari
MC doesn't realize he's OP because he's the weakest one from his village but his fellow villagers are descendants of heroes so his common sense is off
Maou No Kawaii Yamada Wa Yoiko
middle aged man gets isekai'd into a world where he's considered a toddler and a loli demon king adopts him
Koori Zokusei Danshi to Cool na Douryo Joshi
ice boy cutie x cute girl coworker
Ibitsu na Koi no Seesaw Game