Hinase survives a brush with death, and their rapidly changing present leaves more questions in its wake. What are attraction and gender-and why does Hinase feel so uncomfortable with both? Hinase's nostalgia for a simple childhood drives a wedge between them and their best friends, who are growing up without them. Shiori drifts away, blaming himself for Hinase's misfortune, while Ritsu strives to uncover the source of Hinase's anxiety. Only Hinase can face the truth for themself.