Mina, who has no place in her family during her period of fatigue, throws herself into work to distract from her loneliness. Asako, a colleague, falls for Mina at first sight due to her kindness, sincerity, and rare beauty. Seeing Mina's occasional lonely expressions, Asako actively tries to cheer her up by talking to her. This steadfast and single-minded affection gradually melts Mina's frozen heart… leading them to cross a line that should not be crossed.
