Otouto wo Suki ni Narimashita

A romance story that starts with a 5 year old × a 17 year old. Although he will grow up as the story goes on, erot*c stuff happens during when the younger brother is in his shota phase so please take heed. The older brother is not a shotacon but rather, almost. Only vague criminal-like actions until the younger brother grows though…… But he is not a sasoi-uke* . The younger brother is a cute but innocently good-looking. Note: sasoi-uke is a type of uke that usually tempts and takes initiative