Looking for a novel

Can anyone help me find a novel I read like a year ago.

The premise is the fmc is killed by an obsessive lover where she reincarnates as a dog person and chooses to be named kat and she becomes the lover of a futanari and eventually they have a poly harem with 2 other futanari a princess and daughter of the sultan. She also have a system and a tendency to like bloodshed.