Kono Koi wa Tsumi nano ka!?
この恋はツミなのか!?
A 24-year-old office worker, inexperienced in love and lacking strong social skills, crosses paths with a 32-year-old female shogi player during his regular commute. Their relationship develops as they encounter each other regularly on the journey.
Isinasalin pa — orihinal na teksto sa English.