Tristan Kawasaki met Ayumu Aikawa and his friends. The murderer that killed his family also killed Ayumu. He was reincarnated as a zombie by Hellscythe Eucliwood. He serves her as a slave but in a good way. Tristan asked Ayumu for power in order to seek revenge whoever killed his family and Ayumu.

Stella, one hard working and stubborn girl is determined to become a great alchemist so she is able to assist her best friends, Ed and Al. Many adventures come upon them and an unexpected romance also.

This story is about a normal guy, Tristan, that changed his life when he went to the third semister at summer academy. He met strange female twins, Sandra and Sandy,and finds out they were vampires. He also met his childhood friend that he hasn't seen for years and some more strange people with more harem moments. Enjoy!