On Bossun's 15th birthday, he finds out the truth about his parents. Unable to cope with the tragedy, he lashes out, only to meet the child his father once saved when he was a kid, all grown up, who gives him a letter...
I thought I would at least keep it a 
secret until you became an adult...
Por eso iba a ocultarte 
la verdad hasta crecieras.
Pensé que sería mejor que no te
 lo contase hasta que fueses un adulto.
Queria manter isso em segredo
 até você ser um adulto...