when ui san first appeared what got through my mind " ah... finally rival who can make nii take some vinegar come....." ahhh.... look like my mind to much rotten (/TДT)/
just try in novelupdates. i got so much from there. https://www.novelupdates.com/genre/yaoi/?st=1&pg=1
also, almost all in https://chrysanthemumgarden.com is so good.ლ(´ڡ`ლ)
4 chapter and already i got hot scene... i love this....
Lol we get the steaming hot parts in the first chapter of a manga