Terauchi Akitoshi

Kasumi's husband. He works as a systems engineer at a major IT company. He fell head over heels for Kasumi, who worked in administration at the same company. After an intense courtship, they began dating, and he proposed to her, leading to their marriage.

After marriage, Kasumi immediately wanted children, but he privately thought raising kids was demanding. Citing his still-uncertain annual income as a reason, he decided to postpone having children.

He deeply loves Kasumi and they have sex every weekend without fail. However, he is uncooperative about her efforts to conceive and makes a point of always using a condom.