Demons have existed for many years, but how did humanity defend themselves from this dark threat? 5 individuals who have lived for so long make it their life's mission to eradicate these blood thirsty menaces Those five people have unique powers that have different origins but have one thing in common, it all summons armor for them to kill these Demons.... None of these belong to me...

Y/N is an average high school student. But will his life stay that way when he unknowingly forms a contract with a demon?

Tsukiyo Drakon is your typical genius high school student that is always bored with this world. Until the day he died and reborn into a more interesting world.