The first episode of Yofukashi no Uta was pretty much all I was hoping for. It's quirky, with a bit of Monogatari vibes, but way less horny and more cute/comedic. The dynamic between the protagonist and Nazuna is really fun and Nazuna herself is kind of an adorable dork behind the "cool vampire" facade. Plus the whole affirmation of the night theme... Lovely. ^^
Also, a possibly interesting note for @Mr Poltroon... The protagonist starts as more or less aromantic (very explicitly stating he "doesn't understand that stuff"), not sure how this changes later on, but I wouldn't expect real romance to show up very soon. :3