第七魔王子ジルバギアスの魔王傾国記 (Series) favorite_border

[DeepL Translation - needs review] Alexandre, a hero whose home was destroyed by the demon tribe, confronts the Demon King, but is helplessly killed. However, when Alec wakes up, he is reborn as the son of the Demon King who killed him, the 7th Demon Prince Zilbagias. In order to strike back at the Demon King, he disguised his true identity and acted as an ideal Demon Prince--which meant acting as a cruel Demon and laying hands on even innocent people. ...... But still. He makes a contract w...