here’s an explanation for the ending if you didn’t understand:

sana and momo are from different dimensions.

momo met the jeongyeon in her world.

sana met the momo in her world. as she says the word shes been wanting to tell momo which is shes in love with her, yup, she got hit by a vehicle guys, i mean she is in the middle of the road sooo

and the last scene, momo visits mina’s grave after the “fight” she had with sana. then u guys did read that it starts raining when sana says shes in love w momo and the first sentence in momo’s scene is ‘the rain pours.’ meaning that when sana got hit by the car, momo starts crying and she cant stop.

momo’s heart wasn't grieving for mina anymore that moment, she was grieving for sana.

if you have questions just comment :) thank you for reading this boring fic lol love yall <3