katsup said: Try Deep Love - Ayu no Monogatari. Though, as a romance it doesn't really have much, the story is really dramatic and mature. It's also a short read.
I second this recommendation. It is true that romance is a little subtle in this manga, this manga is full of love when you think about it. It's truly a wonderful manga and it made me cry so darn hard! There's a whole series of Deep Love. If you like Deep Love - Ayu no Monogatari then you'll definitely enjoy the others too.
"I've read so much manga that at times my mind works in comic panels and dramatically expressed chibis. I'm both ashamed and amused by this."