S1, E4: After a big misunderstanding, Kazuto announces that he will no longer help Yayoi deal with her sexual desires. Initially, she doesn’t take him seriously, but soon Yayoi finds herself struggling to handle the pent-up frustration... After days like this, Yayoi finally reaches her limit and returns home in a daze. Desperate, Yayoi pleads with Kazuto for him to change his mind...