Hey, can you guys name this manga where a boy (seme) falls in love with a older person in ...

Hey, can you guys name this manga where a boy (seme) falls in love with a older person in his neighbourhood (uke). The boy is actually a brilliant student but gets bad marks on purpose so that his parents asked the uke to teach him. He eventually got good marks and said it was all because of the uke's teaching. He leaves for America in his middle school but before going he gives the uke his first kiss. The uke can't forget him after a long time, and the seme comes back from America at the age of 19(probably). Also, the seme has a ear fetish. Manga art style is good.