Watashi no Shitsuji wa Nabiite Kurenai

She wants to win the heart of Yuichiro Fujino, a cool and handsome butler. She wants to win the heart of the cool and handsome butler, Yuichiro Fujino, but he is always too mature to understand her feelings for him. But then he unexpectedly spoils her or is overprotective.... She is at the mercy of Fujino's words and actions, whose true intentions are hard to read, but she is determined to push forward with her love, and you cannot take your eyes off of her!
https://www.cmoa.jp/title/243384/