It's this one http://www.mangago.me/read-manga/katekyo/
Sounds like katekyo
This manga http://www.mangago.me/read-manga/katekyo/
Oops I answered twice, sorry
Thanks sooooooo much (๑•ㅂ•)و✧
My pleasure
Guys do u know the name of a manga where the uke likes his home tutor (seme) and he had this exam where he knew the answer but purposely wrote the wrong ans so that he would still have a tutor. But the tutor(seme) finds out.