Synopsis: Subaru to Suu-san

Mio Asahina and Subaru Ichijou are new to the neighborhood. While Mio quietly supports her supposed elementary school-aged brother as a florist, she and Subaru share a secret that contradicts appearances. Contrary to popular belief, Subaru is not a child; rather, he acts like a typical house-husband when alone, cooking and cleaning for his partner's return. Beforehand, Subaru lived a regular life as a talented chef with Mio as his girlfriend. However, an unexplainable incident led to his regression into a child before Mio's eyes. Mio and Subaru grapple with this burden and search for a solution to reverse Subaru's transformation together.