yep, this is the japanese page for the event. http://フラワーナイトガール.攻略wiki.com/index.p...83%A1%E3%83%B3

Beware of trollololo Boss C in map 8 with what seems to be like a "let bees free from the start just for a 1/8 chance of facing against me per unit"

But well, we'll see when it comes live here, as i can only get info from the pictures.