Mother/ C***d Fucking: Nakagawa River. Yoko Shirahama

Yoko gave birth to Kota when she was 18. The father disappeared when he found out about the pregnancy, and Yoko went against opposition to give birth alone, raising Kota by herself. Being a mother and son close in age, they got along well and looked more like friends than parent and child. One day, Kota invited Yoko on a hot spring trip. Kota had something he wanted to tell Yoko once he became an adult, so he invited her on the trip.