 In a series of flashbacks, it is shown that Yano was forced to work part-time when his mother was diagnosed with cancer, but kept everything hidden from Nanami, not wanting to worry her.Following an unexpected visit from Michiko, her former friend and the wife of Yano's father, Yoko became increasingly paranoid, fearing he would leave her.When Yano announced his decision to go and visit Nanami, she accused him of being insensitive.