About The story takes place in Japari Park, an enormous integrated zoo built somewhere in this world. A mysterious substance found there, called "Sand Star," causes the animals to turn into humanoid beings called "Animal Girls"! These new creatures spend every day peacefully with the zoo's visitors... but after some time, a lost child turns up in the park. The child's attempt to find the way home turns into a great adventure with the Animal Girls!
Koharu is recruited into an unusual "groping" club only for the reason that she doesn't overlap with the other members' characters. Groping club is in fact an unofficial club with no real activity or purpose, prompting the girls to work on finding one. Strange daily life ensues, where club activities consist of first coming up with club stereotypes, then figuring out a new way to operate such a club.