I became a butler in a korean novel after retiring as an idol. [TCF X Aikatsu]

Kanzaki Mizuki, a 30 year old idol-or well retired idol gets transmigrated in a korean novel she once read.

"What the hell, who's Hans?"

She quickly realises that she became a deputy butler in the Henituse estate until she didn't.

"Hans, you're now promoted to being the personal butler of my oldest son!"

"...pardon?"

Count Deruth made her the personal butler of Cale Henituse.

A minor antagonist in the book.