她的山,她的海 follows the story of two high school girls who become friends and eventually fall in love. While it's a bit sad due to their family backgrounds, it's ultimately quite sweet and uplifting.
I've read part of the web novel version of this and the manhua adaptation is beautifully done! The art is gorgeous and conveys the atmosphere of the story so well. I can't wait for volume 2 to come out physically soon! 5 stars.