Help me find the title please

Its yaoi, a younger seme who likes the older uke, seme likes uke since he's still a kid and uke already a high scholer, when he confessed to uke he kissed uke and got rejected, after that seme got abroad with his dad, and after years seme back and meet uke again. When still kid, seme pretending to be fool in order to get uke teaching him, in fact seme really smart and finish university really fast. Uke know this when they met again.
I already search this yaoi 3 days and havent found yet. Please if you know tell me the title. Tankyuu