Sweet Young Bride - Our Married Life Begins - (Ammolite, MangaGamer) [2017]

Due to the declining birth rate in Japan, the “Government-Sponsored Marriage Program” was created, pairing men with their perfect mate. Kouta is chosen as one of the lucky candidates, and when he goes to meet his future bride, he meets Hazuki, a beautiful young girl. They are married the same night, and Kouta’s new wife makes a request of him: