help

criiii I think that it got deleted because I didn't notice that I wasn't logged in. But basically I need help finding this manga. When I first read it, it wasn't completed, I think. So this boy was so pure that he was told by god or an angel that he will ascend to heaven as an angel. His childhood friend and roommate ends up helping him out by having sex with him, so the pure boy is "tainted". I specifically remember this part where someone from school (they are in college btw) comes over to check on the pure boy and ends up basically raping the pure boy, for the sake of him not ascending. Throughout this the pure guy loses his sight and I believe gets wings. ya thanks in advance