|Season||Fresh Pretty Cure!|
|Home Place||Clover Town|
|Japanese Voice Actor||Maeda Ken|
His age and his home is something unknown, partly due to his having a mysterious past of multiple careers including royal body guardian. When Love and others are upset, he plays the consultant role and encourages them. Owing to a contract that Tart can get doughnuts for free by watching the shop for him, he also shares the secret of the existence of Tart and Chiffon with Pretty Cure.
Kaoru said himself that he "I don't sweat the small stuff. Or the big stuff either, to be honest." He's laid back and easy going, but also passionate about his business and always ready to help Love and the others. He's not that fazed by the fact that Tart appears to be a talking ferret, nor by Chiffon and her powers. At the end of most of his jokes ends in a weird laugh.
- Karou is similar to Fujita Akane, since they both run food vendors where the Cures usually talk and hang out.
- He shares his name with Kiryuu Kaoru, a character from Futari wa Pretty Cure Splash Star.
- Kaoru's late voice actor, Maeda Ken, passed away on April 26th, 2016.