Boku to Kimi no Midori to Drill

Shoichi and Kai have known each other for many years in their shared hometown. Shoichi teaches at the local school, and Kai works at the Okumura store. Their long-standing friendship has developed into a quiet romantic relationship, and they often act like a married couple in front of others, including the children in the town. Many residents believe they are actually married. Kai is interested in deepening their relationship, but Shoichi appears preoccupied with other responsibilities.