The son and the wife are innocent.
Also presumably Maki was also cheating on his then girlfriend, when he was living with Hayama, as opposed to her knowing abd agreeing to Maki also being in a relationship with her along with Hayama. Maki cheating has caused enough problems, hes not grovelling to say sorry to anyone or even showing much awareness that this was poor which was a shame but such is life. He knew Hayama was never going to be a long term relationship due to laws and his desire for kids, but this was handled with so much immaturity and lack of communication.
I need some special please that the son of maki will suffer some disease or his wife will be, I need to see some karma!!!!!