A reunion with her childhood friend gives a depressed young caregiver the push she needs to live for herself and find love. 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. Muku has finally left her toxic family behind, but she can't help but feel bad for abandoning her little sister Inori. Eager to make Muku smile, Yuto decides they should invite Inori to hang out with them.

On the surface, it appears that Yuto's goal is to alleviate Muku's stress, but it turns out he has a different plan in mind.