User blog comment:B214/Question and Answers/@comment-220.255.1.92-20130619180749/@comment-9339850-20130619181631

Rias is definitely not the two you mentioned, Ravel would be the Tsundere of the Harem and there isnt a Yandere...yet, but from the other personalities Rias doesn't really fit into them, like being cold on the outside but kind on the inside or vice versa, shes just being herself and is really DereDere when it comes to Issei but doesnt really go much more than that other than being jealous when he isn't focusing on her and the other girls are around.