Mashiro Yagi

Japari Park is 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!

One rainy day, salaryman Amakusa Ryo is saved by a high school girl he doesn't know at the station. He later finds out that the girl is Arima Ichika. Ryo is somewhat of a womanizer and to repay her for saving him, he suggests giving her a kiss or going out on a date with her, in which Ichika tells him he's creepy. This, however, opens a new door for Ryo and he falls madly in love with her. Ever since then, Ryo tries to overly express his feelings to Ichika. Ichika just keeps insulting him and says he's being creepy, but he just seems to take it as her way of showing affection towards him...