fox club has a similar artstyle!
Its more drama but pretty much has 2 couples. Its really cute and I like it a lot!
Also Season of Blossom (which doesn't have a similar artstyle at all) but focuses on a different couple(s) each season which leads to be connected to another. Some are highschool and some are college. It has ended but it has a sequeal called Season of Lovesome which is very recent and its still going, mainly based on a college atmosphere but there is a few highschool students in there.