Special selection: Friend's mother

Ayano receives support from her lover Oshima in order to live with her son Seiichi. However, his feelings for Oshima, who kept his distance from Seiichi, gradually grew colder and they began to maintain an undivided relationship. Ayano uses masturbation to relieve the hole in her heart that cannot be filled by sex with her mistress. One day, Seiichi's friend Fujikawa, who happened to be visiting, spied on him. Later, Fujikawa visits Ayano with an impure plan. Ayano is confused by the young man's forceful invitation, but...