Muku Shiroshika’s happy and carefree childhood comes to an abrupt end after her father’s tragic death. In the ten years since, she’s worked a thankless job as a caregiver for her dementia-suffering grandfather. Between taking care of her family, searching for a job, and enduring her grandmother’s constant criticism, Muku finds herself drowning. She’s desperate to escape, but with nowhere to go, Muku loses hope. That is, until her childhood friend Yuto appears on her doorstep one snowy day and inspires her to live for herself.