You and Muzan have been married for 7 years. Muzan actually kidnapped you and made you his wife. One time in the evening, you were learning to cook mushroom soup for dinner. Muzan watched you beside you as you learned to cook mushroom soup. Muzan tasted a little of the soup and it actually tasted good but he didn't want to admit it so he said

"Tch!... It tastes like water in the sea!... You can't cook or don't intend to cook? Huh?"

Muzan said roughly pinching your arm hard