Kashou Minaduki, the son of a long line of Japanese confection makers moved out to open his own shop "La Soleil" as a patisserie. But upon moving out, hidden amongst his things were two of the catgirls, Chocola and Vanilla, that the family had been raising. When he tried to send them back, they begged and pleaded until he gave in and now they've opened La Soleil together. With two catgirls who really, REALLY love their master trying their very best and occasionally failing -- a heartful comedy opens for business!

There is a small town on the sea. Raika just enjoys his school life with Ibuki, his old friend, and Yuri, his maid. However, his father is actually a magical girl (?). Also, a group of magical girls come to his school to look for a treasure stone called Mana Prism. Though he doesn't want to wear a girl's costume, he is forced to be a magical girl as well! "Come back, my peaceful life!" To save his school, his battle against the magical girls starts now!

About half a year before the opening of the patisserie, La Soleil where the catgirls work with Kashou. Back when Chocola and Vanilla were still kittens when they first arrived at the Minazuki household and before they opened up to the other catgirls.