I'm trying to find a oneshot manga. It was a kid who kept trying to get his friends to bel...

I'm trying to find a oneshot manga. It was a kid who kept trying to get his friends to believe him when he said that he saw "fairytale creatures" (loc Ness monster, aliens, etc), but nobody believed him except for the nurse. But it turns out that in order to escape the reality of being raped, the kid basically went into a fantasy world, and the kids best friend had seen the nurse forcing himself onto the kid. At the end the kid asks, "Did you see it? The Loc Ness monster?" And the friend is ugly crying saying "Yeah".