Basically, the kid was delusional the whole time even before she fell from the cliff. She is the only one who fell, the water has nothing to do with her. The candies are her own, chud (or whatever) isn't real The girls never treated her bad, and the guy never confessed to her, but instead to the black haired girl. its just her mind playing with her (and us since we saw everything from her pov). (Did you get what I mean?)
SPOILER (but this manga kinda s*ck, so...)
Basically, the kid was delusional the whole time even before she fell from the cliff. She is the only one who fell, the water has nothing to do with her. The candies are her own, chud (or whatever) isn't real The girls never treated her bad, and the guy never confessed to her, but instead to the black haired girl. its just her mind playing with her (and us since we saw everything from her pov). (Did you get what I mean?)