A collection of stories:

1-2. Ametsukigahara (アメツキガハラ); Wings 2014-11, 12

3. Yuki no Hi (ゆきの日); Wings 2014-06

4-6. Ningyo Ouji (人魚王子); Wings 2015-08~12
Mugi moves to an island in southern Japan, but he can't get used to it. That's why Matori, his classmate, won't leave him alone for a second. One night, Mugi spends the night at Matori's house. That's when her grandmother tells him a story about sirens who are able to fulfill any wish...