Ookii Onnanoko wa Suki desu ka?

Souta 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!!
(Source: OceanVeil)
Note: Episode 1 received an advanced distribution on AnimeFesta on March 13th, 2025. The start date reflects the start of the regular series broadcasting.