One day, the fairy of books appeared and told Letty that she was a dying extra character.

“Father-in-law!”
“?”
“Father-in-law, please give me your son!!”

Letty came to marry in place of the female lead to survive, but the in-laws are unbearable!

“I don’t want to work. I’ll take a day off today.”
“If you take today off, it’ll be your 194th day off, Your Grace. It’s already mid-June.”

Her father-in-law, who’s supposed to be the head of the family, is incredibly lazy and is about to ruin the family,

Crash! Bang!
“Why are you breaking things again, husband?”
“I don’t know. I just feel like breaking something every time I see your face.”

The successor, her husband, is the head of the division...!

‘Ugh, I just wanted to heal him and escape, but this isn’t going to work.’

Sigh. There’s no helping it. Until the female lead shows up, should I try helping out this hopeless family a bit?

“Father-in-law, at this rate, you’ll ruin the family!! I’m so embarrassed, I could die!!!”

And so, Letty managed to get the lazy father-in-law to start thinking like a hardworking ant,

“Hubby, your heart is racing again? Don’t break things and hold Letty’s hand.”
Crash! Bang!
“Ahhh~ The young master is destroying the mansion again!”

The attempt to reform her husband failed.