In a serene domestic setting, Harumi resides with his partner, Ryouichi, and their son, Shuu. Their blissful routine is disrupted when a surprising proposal of a marriage interview for Harumi arises. This one-shot manga serves as an additional tale stemming from the acclaimed novel 'Love Certificate (Renai Shoumeisho),' penned by Sakiya Haruhi and illustrated by Machiko Madoka.