It's a slice of life about a brother who have a sister and she's a zombie, she usually cook a lot of food and make him eat it in order to keep him healthy so she can feed off his blood. And she has a ribbon on her head that if come off make her true emotions about him pouring out and went on a eating frenzy

I'm pretty sure that's Fudatsuki no Kyoko-chan!

Fudatsuki no Kyoko-chan

lol what are the odds of two people answering at the exact same time. Did we break some kind of record here?

OMG, yes, thank you so much