Mizuki Akitomo lives in Room 201 of Shimizu Apartments and works as a nightclub hostess, her bright, nurturing personality masking private turmoil. Trapped in an abusive relationship with a dependent boyfriend, she endures escalating physical violence, concealing bruises beneath face masks and numbing her pain with alcohol. When her ex-boyfriend’s threats intensify, she flees to the police, abandoning her apartment and job to escape danger.

Her compassion emerges in her bond with Kotaro Sato, a self-reliant boy in her building. She steps into a maternal role, sharing his hobbies, ensuring his safety, and providing steadfast emotional support. Their connection fractures when she relocates abruptly, though she leaves farewells and a resilient smile for Kotaro and neighbors, sustaining ties despite her upheaval.

In an epilogue, Mizuki resurfaces in a seaside town, her demeanor renewed and hopeful. This journey from survival to rebuilding underscores her resilience, framing a narrative of concealed trauma, domestic violence’s scars, and the fragile balance between enduring suffering and nurturing bonds.