They both met because of some mysterious encounter, they fell in love but there's more to the story than what meets the eye.
"Gege! there's a body in the lake, quickly go help them"
That's how they first met, he unconscious, whilst she was of a sound mind. Being love at first glance for her, but it was love after regaining consciousness.
Disclaimer: Contains violence, mature scenes and totally cringe worth scenes as well.
Read at your own risk!