Stepmother's humiliation molester train - being seduced by his son's twisted desires

Saki married her boss, Kenzo, who listened to her desire to continue working after marriage. Although he was living a fulfilling life, he still felt a mental barrier with his stepchild's only son, Tsuyoshi. At that moment, Tsuyoshi, who happened to be present on the train, is seen being attacked by a molester. Tsuyoshi, who secretly admires his stepmother who is close to his age, finds himself in lust after Saki, who is lewd, which doesn't look like his usual neat appearance. Then a few days later, she gently creeps up behind Saki on the way home...