Sota was suddenly made dorm manager and coach of the Hokuei University Women's Volleyball Club as prompted by his older sister, Kaori. There, he had a fateful reunion with Ayano, his first love... In the girls' dorm! In the gym! In a hotel?! What awaited him were days of being bossed around by girls bigger than him! A Happy Harem Rom-Com of Size Differences♡ Born Huge on the Northern Plains!!