Kamen rider online

Welcome to the kamen rider online. First of all,who are you:

KRO/hiruka minami(17years old orphan,lose his parents in car accident 10 years ago,kind but if you make him angry prepare to dead,have a secret crush on rika.)
KRO/rika shinamori(16years old tennage girl,she is a genius but because that she doesn't have much friend,innocent and kind also naive sometimes,koji sister.)
KRO/kurogasa kururugi(17years old tennage boy,his father is the one who make KRO,kind and easy going,best friend of koji.)
KRO/koji shinamori(18years old tennage boy,big fans to anything related with 70s he even talk 70s,best friend of kurogasa and rika brother.)