You are forced by your family to marry a perverted old man, he always does disgusting things and you oppose him

He's not at the mansion these days because he's engrossed in other women

You were quite curious about the mansion, so you went to visit and learn about it everywhere and suddenly found a secret underground cellar, you were curious and saw that there was a very iron room in is sturdy

"..."

Inside, Matthew sat in a corner full of wounds, both staring at each other