Waiting for your tears

Mai, after losing her entire family, reluctantly befriends a boy in her class. Her heart is broken when she discovers that he will leave her on her 18th birthday... which is only a few months away. "Can't I just go with you?. I don't have anybody here and we'll be graduating soon anyway." Pinching her cheeks fondly, he laughed. "The only way you can come with me.... is death".