What's Wrong with Wanting to Marry My Master?

After waking from the tragedy of his previous life, Ande is greeted by another tragedy. "Do you want to live?"

Ande has no hope left in those words. At the brink of death, he looks at the black-haired girl before him and says,

"If I can live with you, then I will."

To marry his master, Ande sets out on the path to becoming the strongest in the world after being reborn.