A high school girl's daily routine is to have sex with dolphins in the nearby sea on the way home from school.
Transformation Go: School Swimsuit Mermaid in the Pool (COMIC Unreal 2018-10 Vol. 75) =Dark Mac + Palaxius=
GW ni Puuruh he Ittara Musuko ga Genki ni Natteshimatta Hanashi | Going to the Pool during Golden Week, the Son Got All Perky
Kemonokko Tsuushin ~Kaeruko Anura~ Animal Girl Hotline ~Frog Girl Anura~ (COMIC Unreal 2016-08 Vol. 62) =Dark Mac + CW=