A cute undead girl can't be scary, no way, it's just not gonna happen. I'd let her eat my body any time if she so desired, no matter how scary she would try to be.
However her being undead does explain her strength, she doesn't have a limiter now, like Ayumu in Kore ha Zombie desu ka ?/of the dead. She does have a few moments normal people would get scared like shit, but I can hardly call myself normal ta this point in time. And Babu is still awesome !