No Class. No Level. One Demon Wife. Send Help.

She tries to kill him every morning. He asks if she wants pancakes. Ryuji Volkris was a mafia boss summoned to a fantasy world. The system tried to give him a class. It failed. No class. No level. No powers. The human king ordered him to kill the demon princess. He refused. The demon king ordered his daughter to kill the summoned hero. She tried. Forty-seven times. She failed. Forty-seven times. Now they're married. She attacks him every morning. He makes her breakfast every morning. She eats it and tells herself she hates him. What she doesn't know is that every night, while she sleeps, assassins come for her. And every night, her husband with no class and no level fights them all. In the dark. Alone. Bleeding. He bleeds for her every night. She tries to kill him every morning. The pancakes are made with stitched hands. Until the day she gets hurt. And the most powerful force in the world wakes up inside a man who still doesn't know he's in love. — Description from novelcodex.org