Shonen romance can in some ways be some of the most timeless manga, but that doesn't necessarily mean it'll be any good.
I"S (Aizu), by Masakazu Katsura. First published in 1997 and first published in North America in 2005.
PLOT:
Ichitaka can seemingly do nothing but pine endlessly for Iori. Too bad that she is way out of his league. Not only is she one of the prettiest and most popular girls in the class, but she's also an up-and-coming model and actress and Ichitaka doesn't want to be yet another creep hovering around her. He finally gets a chance when the two are thrown together on a project for the school festival, but a childhood friend who turned into a beauty in the meantime threatens to complicate Ichitaka's feelings.