
Osananajimi Kussetsuritsu
幼なじみ屈折率。
Yuuma has a childhood friend named Minato, who has always liked touching him. Their relationship takes a new turn when their parents announce that they are going to get engaged, bringing the two closer together than ever before.
As Minato becomes more physically affectionate and their families merge, Yuuma finds himself struggling with the changing dynamics of their friendship. He must navigate his own feelings and decide how to respond to Minato's advances, all while dealing with the pressure of their impending family union.