When Hiroaki was 10 years old, his father died in a traffic accident. Chisato worked desperately and raised Hiroaki single-handedly. When Hiroaki saw Chisato working hard, he fell in love with Chisato as a woman. One day, Chisato was forced to take leave from her company. The company was worried about her overworked Chisato. She was also arbitrarily booked at a hot spring inn that the company has partnered with as a welfare facility. Chisato invites Hiroaki to a hot spring trip, not wanting her to go alone. At the destination, Hiroaki confesses her feelings to Chisato. Chisato tries to respond to Hiroaki as her mother and as her woman, but...
