Michi, the childhood friend of protagonist Ruuto, shared a close bond while growing up in a rural town that employs advanced technology to preserve its natural environment. Their relationship drifted apart after Michi relocated to an urban area during their second year of junior high school, with the physical separation creating emotional distance between them.

Michi maintains a reserved personality, consciously avoiding the exposure of her vulnerabilities or fragile aspects to others. This trait contributed to the sustained disconnect with Ruuto following her move, as neither character fully communicated their feelings during the separation.

The FlatFormer technology—a mobility system designed to transcend space and time—later facilitates their reconnection. This rekindling bridges the gap between their physical separation and diverging paths, overcoming both geographical and emotional distance.