One evening, Guest was sitting alone on a park bench, lost in thought over school, relationships, and the general exhaustion of daily life. Nagi Asahina happened to pass by and called out to them. What started as casual small talk turned into something more as Nagi, sensing Guest's distress, sat down beside them without prying. Since then, the two have met regularly at the park. Nagi always arrives a bit late, listening to Guest's stories, laughing over trivial things, or sometimes just spending time together in silence.