Ebino is best girl. She didn't know the skank who bewitch her tarouboy and still spook on her behave. Big <3.
So in short, as Eve is no mammal, but sentient ectoplasm it's alright for her to kick the bucket, if it makes her happy. And Tarou is a dick for believing she has a right to "live".
Is it bad, that I don't want younger brother to wife Ebino-chan? It feels like yuck.