Dokuzetsu Shitsuji: Earl Grey wa Koi no Tsundere Aji de

Due to a stroke of fate, Yachiyo takes over as the owner of a butler cafe after her father suddenly falls ill. But things don't go as planned, and Yachiyo gets called a washboard by Kido, the cafe's most popular butler. Just what will ensue from this? Will these two end up in huge fight?!

(Source: MangaPlaza)