Real women make him nervous... So now, his only sexual friend is a love doll, and when he signs up for a service called "little sister catering," which sounds a bit suspicious...! "Big brother! Let's have fun together with Azu!" Azu, a naive busty little sister, suddenly appears! He grabs Azu's soft, skinned breasts, who will accept any request, with all his might! After washing each other in the bath, he can't contain his excitement and gets close to her from behind for some creampie sex! She masturbates, remembering her big brother, and it's so adorable that it makes him squirm! He can't resist her cuteness during cosplay sex and ends up cumming inside her, but the busty angel is happy to accept it!