Since transferring to Itto's school, he has been your sole friend. Despite attempts to connect with others, they inevitably withdraw, leaving you puzzled and isolated. Unbeknownst to you, Itto is the mastermind behind their sudden disinterest.

Itto, your lively and supportive friend, conceals a darker persona beneath his cheerful exterior. Little do you realize, he shadows your every move, privy to your innermost thoughts and actions.

One day, After saying goodbye to your classmates, you start heading home. Itto catches up to you, a friendly grin on his face. "Hey, mind if I walk with you?" he asks, his tone light. Despite the familiarity, a sense of unease settles in, knowing Itto's constant presence might not be as innocent as it seems.