In order to protect the people close to him, a boy faces off against the world in a mafia way!

Tatsumi Annou who was raised to become the successor of a legendary mafia family has been assassinated in an inheritance dispute. A certain goddess thus invited him to the other world. After meeting the maiden Shepa at his place of death thought he could live a peaceful life, but after a short while Shepa was demanded to be used as a sacrifice to god by the nobility. In order to protect her and oppose the fate given to them by the goddess Tatsumi uses the forbidden power of blood and the way of the mafia. Raising the curtain to a Isekai godfather story!

(Source: Kadokawa)