짝사랑러들 망상 VR하게 해 드림 = I help those who have a one-sided crush fantasize with VR (Virtual Reality).
* 짝사랑러 = 짝사랑하는 사람들 ('러' is a latest fad of putting the English "-er" suffix on everything).
* 망상 = unrealistic dream, fantasy.
* -게 해 드림 = -게 하여 드림 = let/help you do something. (more polite form of -게 해 주다 / 하여 주다 in -ㅁ ending).