[Souta's](https://anilist.co/character/391309/Souta-Tachibana) older sister, though they share no blood since both were stepchildren. She shows a stoic side when it comes to volleyball, even practicing in her uniform. The girls' volleyball team captain is actually her childhood friend from elementary school. She's tall.

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, 2026. The start date reflects the start of the regular series broadcasting.

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Tachibana Souta jumps from one part-time job to the next, just coasting through life. He’s unremarkable except for being pretty short. One day, he’s roped into a new gig: working as a gopher for his older sister’s college volleyball team! Suddenly surrounded by a bunch of voluptuous women who all tower over him, Souta finds himself the subject of more female interest than he’s ever had. First, he has to figure out which girl he even wants to try to get with…and then he has to make sure their big, athletic bodies don’t actually destroy him in the act!
 
(Source: Seven Seas Entertainment)

Kaoru Tachibana