There is a new student at Oobu High School. His name is Yakuda Daigo. With his buff body and a tough-looking face that can make everyone run, soon rumors spread about him. Some say he's a gang leader, others say he is involved with Yakuza business, still more say he rapes, steals, and likes beating people. There are only a handful of people who know who Yakuda really is, including Manami-a. She is a girl Yakuda fell in love with. Yakuda loves to cook and he likes cute things. He also enjoys gardening, crafting and adores pets. He is a very caring person. He always carries around a cute sewing kit and a cute first-aid kit around. However, with many unfortunate events, he often gets involved with a gang fight or a criminal, along with other coincidental things that happens around him. People always assume the worse for him.

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!

The Rumble Roses XX Original Soundtrack is based on Konami's Xbox360 video game release and features a complete selection of all character introduction songs found in the video game and includes a Bonus DVD with all entrance videos.

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.