♂ m

♀ f

A third-year student and Yuuma and Marine's childhood friend and a honor student. She took care of Yuuma and Marine since their childhood, because their parents were almost never home. She came to Amanoshima Island in order to find Yuuma and ensure his safety.

♀ f

A first-year student and Yuuma's non-blood-related sister. She loves her brother very much. She came to Amanoshima island in order to research "condensed energy water" for some totally "pure and innocent" purposes. Marine is also the one who kidnapped Yuuma and brought him to Amanoshima Island.

♀ f

The legendary whale goddess of the island herself. For some reason, she has lost her power, and she also claims that it has been a long time since she last appeared in front of humans. She met Yuuma by chance, after Yuuma fell down the waterway and got swept up the mountain and landed right in front... read more

The legendary whale goddess of the island herself. For some reason, she has lost her power, and she also claims that it has been a long time since she last appeared in front of humans. She met Yuuma by chance, after Yuuma fell down the waterway and got swept up the mountain and landed right in front of her shrine. Her favorite food is canned mackerel, which she starts loving after buying it from the convenience store with Yuuma. Due to being a goddess, Riru understands the structure of the world and other things well, especially everything to do with maths and physics, however, she has misconceptions about some of the things humans do.

♀ f

A second-year student and Yuuma's classmate. Mitsuki comes from a traditional miko family which has served the whale god for centuries; she is very proud of her role and position in the family.

♀ f

♀ f