The Twin Demons of Nazarick

[The protagonist is a happy person], [Not the Holy Mother], [Decisive killing] Seiya, the strongest alien species in the Overlord game, the supreme demon, and the first person to become a boss in the world, once again met the Nine's Own Goal (suicide branch of nine) team at that time by chance. At their invitation, he joined them and became one of the forty-two supreme beings in the Great Tomb of Nazarick. ...... Champion? Such a boring job title suits you very well! ! ! President? Let Momonga do it! ... Justice? Didn't you see the value of justice that I risked all my losses? Wake up, I just want to have some fun. Strength is the absolute basis for defining justice.