Seiko is troubled when her stepson confides in her about her daughter's infidelity, feeling it's her fault and believing the unfaithful behavior stems from her own bloodline. Overwhelmed by guilt, she becomes deeply emotional. Seeing her stepson's pain, she resolves to comfort him in any way she can. As an apology on her daughter's behalf, she unzips his pants, reaches for his cock, and begins pleasuring him. This act becomes Seiko's way of making amends—taking her daughter's place to soothe his heartache.