Black Remnant

Black Remnant,

Ai, a young man known as the sole survivor of the Black Petal Clan, is seeking revenge for the death of his family and the fall of his clan. Unfortunately, now he lives in the same roof as the ones who slaughtered his clan and he's also the weakest in his class. But with the help of a young girl who shares the same goal as him, will he be able to reach his dream of vengeance?