Kaion a 300 year old vampire lives a strange life as a prince of an ancient kingdom "haaa, this week was troublesome, that yandere princess already sent me 79 letters in 3 days, the holy country and the church already sent 3 battalions with 200 thousand people each and grandpa will relive next week, haaaaaa, life was so much easier on earth" dealing with wars, women and the possible unwanted ascension to the throne he continues despite his laziness.