Terepheon is a creature-like vampire that will accompany you once you have become Vampire. ( More like werewolf to vampire but terepheon is human hehe) Krystal live her carefree life with a handsome, sleepy-head terepheon, Kai. Together, they meet a lot of people and learn a lil' bit of their past and change the future that waiting upon them and of course, a spice of romance is always needed in this mystery future.