The son couldn't help but be shocked by the sudden visit. His cousin hadn't come for just any reason—it was because of his illicit affair with the son's mother, Ryoko. Though suspicious, the son watched as his mother acted completely unfazed. Soon after, the two slipped away, sneaking off to a love hotel behind the son's back. Later, as Ryoko was washing dishes in the kitchen, her cousin suddenly embraced her from behind. Startled, the first word she uttered was her son's name. That single utterance marked the beginning of an event that would shatter the family's bonds.