Masamune recieves a letter with the words "Pig's Foot" written on it and realizes someone knows about his past. Masamune tries to find the person who sent the letter, and it ends up being someone rather surprising.
Why do you know my old nickname?!
!لمَ تعرفين لقبي القديم؟
¿Cómo conoces mi viejo apodo?
¿Cómo conoces mi viejo apodo?
D’où tu connais mon ancien surnom ?
Il mio vecchio soprannome, come fai a conoscerlo?!
Como você sabe o 
meu antigo apelido?!
Как тебе удалось узнать 
моё старое прозвище?