Midnight Secretary Vol. 7 (manga)
Kyohei has been banished from his clan because he refuses to renounce his love for Kaya. But a lone vampire is a dangerous thing to be, and Kyohei finds himself cut off from the vampires' power and protection. He doesn't even have access to blood substitutes anymore! Kaya wants to support him through this crisis, but arranging "dinner dates" for him again might be more than her heart can take!