Kazuya Kawai

Miyako’s former husband. During his high school days, he was Miyako’s boyfriend, and watched by as she and her friends sexually assaulted Yui.

During his visit to the massage salon Miyako was working at, Kazuya did not recognise Yui, and was seduced by her and began the affair. He later found signs of Miyako cheating, which made him warm towards Yui even more.

Miyako’s and Kazuya’s affairs were revealed to each other on their wedding anniversary by Yui, which broke up Kazuya’s family. Kazuya rubbed it into Miyako that he liked Yui ever since high school, and only married Miyako for her family’s money.