幼い頃から幼馴染に構いまくった結果 〜デレデレになった幼馴染をこれでもかと甘やかします〜 (Associated Names)

The hero, Yuu Kokonoe, was a boy who was very interested in strange things when he was a child. The heroine, Yuki Amami, as a child, was an expressionless and somewhat absent-minded girl who had no interest in anything. Yuu becomes curious about the expressionless Yuki, decides to make her a target and starts to…