Ryoko Sato, a high school student, consistently dons distinctive attire featuring a blue cape and plastic fantasy-inspired accessories. She maintains a self-crafted identity as an interdimensional researcher seeking the "Dragon Terminal," projecting this persona during school activities and public interactions. This elaborate fantasy functions as her coping mechanism to evade reality.

Her background includes estranged, physically absent parents, a familial void that fuels her withdrawal into delusion. This behavior makes her a target for severe school bullying: classmates orchestrate verbal harassment, physical violence, theft of belongings, confinement in locked spaces, and public humiliation due to her unconventional ways. The persecution deepens her reliance on fantasy as psychological armor.

Her development hinges on classmate Ichiro Sato, assigned to assist her. Initially resistant, she forms a fragile tether to reality through their connection. When external pressures cause Ichiro to withdraw temporarily, she regresses dramatically, constructing a fortress from school desks symbolizing total retreat. This culminates in a confrontation where Ichiro, confronting his own past, reaches out at the fortress. His acceptance inspires her choice to tentatively engage with reality alongside him, initiating her fragile progress toward normalcy.

The narrative frames her recovery as a shared journey requiring mutual understanding, not mere abandonment of fantasy. Her arc explores escapism, bullying’s psychological toll, and healing through connection.