On the day of Yamato's and Sera's marriage, Sera experiences a car accident which causes her to pass away. 3 years later, a distraught Yamato makes a life promise in front of Sera's resting place to search for her in every life time of theirs. He promises to never give up searching for her no matter how many times they've reincarnated. He vows to search for Sera until the dat finds her in order to spend a lifetime of forever with Sera. Due to a broken heart, Yamato soon passes away after making his life vow to Sera.
As each reincarnation passes, will Yamato be able to fulfill his vow to Sera years ago? Or will he continue to search for Sera? Will Sera remember Yamato and their past together? Or will they continue to be strangers while Yamato remembers their past but not her.
"Yo Yamato," Leo calls out to one of his best friends, other than Tusk whom wasn't there at the moment. Yamato glances up from his phone and waves at the other boy. Leo approaches the younger one and swings an arm around Yamato's shoulder, "sorry for making you wait," he apologizes.
"It's fine," Yamato says, "so what's up? What did you want to do today?" he asks, stuffing his phone back into his pocket.
"Mmmmm...," Leo ponders, scrunching his mouth to one side of his face, "how about..."
"Don't take too long to decide, I might just give up on you," Yamato teases his friend and elbows the older one in the stomach. Leo lets out an 'omph' and while clasping the area where Yamato and smacked him. Yamato laughs at his Leo who was glaring at him through his lashes, "Sorry Leo," he apologizes and slaps the older on the shoulder, "I'm going to go get a drink at the vending machine while you think of what you would like to do," he says and walks away from Leo. Leo leans back into the bench and continues to ponder while rubbing his chin.
Yamato walks up to the vending machine filled with a variety of fruit drinks and sticks money into the slot. Sliding his finger over the buttons, he presses on three buttons and then bent down to pull his drink out of the vending machine.
"My coin!" a girl calls out a few feet from Yamato. Yamato glances at his feet and there laid a silver coin. He picks it up. A pair of feet wearing a pair of blue flats approaches him, "thank you," the girl says.
Yamato gets up from his crouching position to let the girl know that it was okay. His eyes lands on the girl standing before him and his heart stopped, his brain stopped, and he wasn't able to form the words, that he had wanted to say earlier, to the girl. The coin in Yamato's hand slips out of his fingers and lands on the cement once again...
"Sera...," Yamato breathes out.