あらすじ
Maise is stuck spending the summer after her first-year of high school helping out at her family’s hotel in the sleepy seaside town, but things become a little less sleepy once Ichirou, a mysterious young man, checks into the hotel. It seems as if only Maise and Ichirou can see the strange, sudden apparitions: the hotel lobby and the room transforming into an aquarium, a giant tree erupting from the floor or the rowdy monsters laying claim to the hotel restaurant.
あらすじはAniListより（英語）。