Fujishiro Kyouji

Husband of Kyouka. He insisted that Kyouka become a housewife after their marriage, but after he was diagnosed with an illness, he had to stay at home instead. He is kind towards the protagonist, who became their neighbor, and always tries to make Kyouka stop treating the protagonist harshly.

Spoiler

Because of his illness, he is unable to satisfy Kyouka's sexual urges, which made her resort to uploading sexy pictures of herself online.