Oujougiwa No Imi O Shire!

ichimatsu kairo's ex-girlfriend, kusakabe hiyori, who disappeared 7 years ago appears before him again one day. as someone who was converted into a devout follower of the hiyori religion, he became unable to live in reality when she left. reunited, she divulges to him her unreasonable demand, “ichimatsu-kun, i want my childbirth recorded so give me your sperm.”