The ending is open, but it is assumed to be a hopeful/happy one. There is someone who likes Yetan, but they don't cause any drama, and she's very clear about her feelings. Same with Qingkui. They both like their respective MLs.
Should you skip this only because the ending seems to be disappointing?
I personally loved every episode up until ep 14. Although the ending wasn't that satisfying, it was fitting for a transmigration drama. I would still recommend watching it just because the build-up is so so so good!
It's an open, but hopeful ending.. i guess more for the imaginative mind? You can assume it is a happy ending, but we don't get a final scene for the main couples.