Milk Time ni Sasayaite

The romantic relationship between Mimi, a 17 year old high school student, and Shuusei, a 29 year old artist. Mimi is cute and a bit klutzy, and has wildly curly hair. Shuusei is cool, but somewhat shy, and is half Caucasian. They come from different worlds. Can they ever make their relationship work?

source: https://www.mangaupdates.com/series/8d6vwm1/milk-time-ni-sasayaite