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! 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 has sex with her from behind, cumming inside her! She masturbates, remembering her big brother, and it's so adorable that it makes him writhe! He can't stand the Ke'ai of her cosplay sex and ends up cumming inside her, but the busty angel is happy to accept it!