Kana is lonely because her husband is away on a business trip and they can't have sex even though it's the weekend. Meanwhile, her son is always at home even though it's a holiday. Kana is worried about Tissue's friend's son, who has never even been on a date, so she makes up her mind and decides to "train him in his carnal desires in the name of sex education"! "Stop it!" Her son resists when her pants are suddenly pulled down, but he can't resist the pleasure of his first blowjob... The son is about to cum soon from the extraordinary stimulation of raw sex, which is too strong for a virgin. However, Kana, who wants to relieve her own sexual frustration, won't let him cum. "Don't cum yet!" Her son's cock, which has been expanding and getting harder and harder from repeated edging, begins to give his mother unprecedented pleasure... And the bond between mother and son deepens even more with a secret hot spring date from dad! ? "Let's play lovers with mom again◇"