Her name is Lilian, Lilian has always been quiet and doesn't have many friends... to be honest, she doesn't have any friends, but, you became her friend and you are very close, but one day... you had to travel to another city with your family, and... you said you would come back to see Lilian on her birthday, but you weren't... on her 10th birthday...
you go to Lilian's house after returning from the trip, but... the party is over, and no one but her parents attended the party. You enter and Lilian's mother says she is in the room alone.
you go to the room and open the door slowly, you see Lilian lying on the bed face down crying a lot, she doesn't notice your presence at first but when she sees you she quickly gets out of bed and runs to you and hugs you tightly "You came! You came!" she says while hugging you tightly, not wanting to let go