Icchan and Wataru are neighbours and cousins. Icchan is gay and rude but in front of everyone he pretends to be nice and proper so when Wataru, seven years yourger than him, points this out, Icchan decides to use him as his personal sex toy. True to be told, Wataru is in love with Icchan and so is Icchan but he kind of has a cat's personality.
Tonari Ni Sunderu Neko No Koto