I'll be upfront, this series has quickly become my new favorite Shounen Sunday series.
The description does not do the series justice. An amazing story of a boy who meets a vampire one late night while going for an evening stroll. She asks if he wants to be a vampire, and he finally knew what he wanted in life.

Story: (8.9)
The story is slice of life, to boarder line Shounen. At times it is just a boy and a girl hanging out talking, other times other vampires show up to try to steal Kou. I don't want to spoil to much, and it is still fairly new but it is going places!

Art (9.9)
I might be biased, I am a huge fan of Kotoyama's art. I love the way he draws, and the faces his characters make. It is expressive, yet at time just the right amount of basics. if that makes sense XD. The backgrounds are very good, not top-tier, but good.

Character(9)
The characters sell this series. They are fun, playful, enjoyable.

Enjoyment (10)
I love this series a lot. so yeah, I enjoyed it.

Overall(9)
I could see this series becoming a 10, but for now it's got a bit more to go. Kotoyama has really out done himself this time, and I can't wait for more!