I can't remember the manga title

Hi, the manga is yaoi/shounen ai wherein an artist met a ghost on the rooftop. He fell in love with the ghost. He was supposed to draw him and he saw the ghost's portrait at the club room. It was then when he found out that the friend he met was a student who died when he fell from the rooftop.

I would be very glad if anyone could help me. Thanks in advance!