Koi Nanka Shitakunai: Kyou kara Kyoudai ni Nari

When Nakajima’s mother announces her decision to remarry, he is initially filled with apprehension about how his life might change. However, his fears quickly prove unfounded as the transition turns out far better than he ever anticipated. His new older brother is incredibly supportive, showering him with affection and constantly looking out for him. The two develop a remarkably close bond, enjoying a warm and harmonious daily life together as they settle into their new family dynamic. Their comfortable relationship takes an unexpected turn one day when Nakajima returns home earlier than usual. Upon entering the house, he inadvertently walks in on his older brother engaged in an intimate encounter with another man inside his bedroom. This shocking discovery shatters the innocent image Nakajima held of his doting sibling, leaving him deeply unsettled and unsure of how to process what he has just witnessed. The sudden revelation introduces a complicated tension into their once-easygoing household. Forced to confront this hidden side of his older brother, Nakajima must navigate his own conflicting emotions. As the boundaries of their newfound brotherhood are tested by this startling secret, the story explores how their relationship will evolve in the wake of such an unforeseen disruption.