Here is the full list of all 20 My Loved Heart achievements. It takes around 0-1 hour to unlock all of the achievements on Windows.
20 Achievement
19 Achievement
18 Achievement
17 Achievement
16 Achievement
15 Achievement
14 Achievement
7 Achievement
4 Achievement
3 Achievement
1 Achievement
13 Achievement
12 Achievement
11 Achievement
10 Achievement
9 Achievement
8 Achievement
6 Achievement
5 Achievement
2 Achievement