Tsubaki, who was separated from her son for some reason, comes on a solo hot spring trip
Kenta, an employee of the inn, turns out to be Tsubaki's long-lost son
Kenta can't open up when he suddenly reunites with Tsubaki
br>She hates Tsubaki for not doing motherly things for her, and demands that she give her body to her.
At least to atone for her sin... Tsubaki lets her son have sex with her.
