Seasons
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Kaname Okiura, a student of Umineko Shougyou High ("Umishou" for short), joined the school’s swimming club in order to learn how to swim, but the club is filled with weirdos. Then, a sunny, happy-go-lucky girl named Amuro Ninagawa who transferred from Okinawa joined the club. Her extraordinary underwater speed and unorthodox swimming style surprised every club member, especially Okiura, because she reminds him of a mermaid he saw only once in his early childhood.
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June 14, 2021

April 09, 2022

November 17, 2014

July 09, 2020

May 25, 2021

August 08, 1979

April 10, 2020

December 12, 1993

April 22, 1994

October 02, 2020

October 09, 2019

Unknown

January 07, 2026

August 11, 2025

July 15, 2020

January 13, 2020

April 04, 2020

January 09, 2020

October 08, 2019

October 05, 2019