Yarisugi Brothers summary:

Hinata is a good looking model who is arrogant and selfish. In order to correct his son's troublesome personality, his father makes arrangements to welcome a step "brother" into the family. Yue, a lawyer in the making, loves his "brother" and is a big perv who chases after Hinata's a** with a straight face! While living under the same roof, will Hinata be able to protect his chastity!?+