Tenbin wa Hana to Asobu

Lotus Girls' Academy. A school whose aim is to educate young girls to be pure and modest. Youko is a new transfer student here, and immediately takes a liking to Shuu, who shows her around the school. However, Youko discovers a big secret about Shuu... she's a vampire! Youko then does her best to be the best friend she can be and help Shuu protect...