Nee Senpai, Oshiete Yo
Person A moves into school dorms, Person B is supposed to guide Person A in the dorms. Person B is closed off because of some stuff from middle school. Over time Person B warms up A, A catches feels and tries to hide them (terribly so, B can clearly tell). No real conflict, pretty cute.
Restart wa Tadaima no Ato de
A moves back home after leaving his job, B is an adopted son from another family who has never met A yet. They meet, A is reluctant to let B in but eventually does. B makes A want to improve character. Pretty sweet storyline.
Unmei no Hito to Deaeru Koisuru Apuri
Daiji ni Suru Kara Tabete Ii
Person A is nice to person B, person B gets immediately attached to person A and follows him around constantly, person B is scared of getting close to people cause he doesn't wanna face rejection
Akai Ito No Shikkou Yuuyo