prequel :
It is at the mall where the fated encounter occurs. He recognises her immediately; despite the length of her newly grown hair, and the elegant dress she wore. The clips on her hair are still present, and this brings him back, it really does. Len stops in his tracks, and he looks over his shoulder to that healthy, glowing hair. He's hesitant. The words are on his tongue, but a part of him refuses to cry out, because he is scared to feel that pain again. The pain of losing one which you loved dearly again.
"...Rin?"
The girl seemingly does not hear at first, but then she turns around, and those pretty eyes widen. Her eyelashes tickles her cheek as this happens, and an eternity seems to pass. The grip she had on her bag is released, and said item falls to the floor, contents emptying. Nothing is said, but Len knows for the first time, he predicts both Rin's thoughts and actions.
He throws his arms around the other, and his eyes blur with tears as he buries his face into the crook of her neck. "Len. Len, Len, Len." And he is so glad she remembers. The fear of her possibly forgetting about him had torn at his heart for so long, he had long become numb. They break apart from the embrace and Len smiles at her. Rin laughs and joyful tears roll down her cheek.
"From here till the ends of the earth." they say simultaneously, and Len knows that this time, the promise will not be broken.