MC starts working part time at a local nursery, there she finds another guy working who keeps to himself but is good at his job, one day the cop comes to visit her and sees that the guy working there is the one who killed his father, he's out from prison since he was just a minor when he did it. Cop obviously gets angry, tells him to fuck off, tells Kako to quit the job and stay away from the guy. But Kako doesn't listen, she thinks that he needs to get over it and that the guy has changed. She keeps going there despite it pissing off her husband. Even the murderer agrees with the Cop on everything, asking her how she is defending him when she doesn't even know him, when word gets out about his past and he decides to leave, she tries to get him to stay, even the murderer is baffled at her.
I mean I understand that the guy is regretful of his actions, he is trying to change but Kako defending a murderer to her police husband whose father was murdered by him in front of his eyes and was the cause for his entire life changing permanently is way too stupid and anyone is bound to get angry at her.