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 are you so worried about that?
لمَ أنت قلقٌ للغاية؟
Warum interessiert dich das?
¿Por qué te preocupa tanto?
¿Por qué te preocupa tanto?
Pourquoi ça t’intéresse autant ?
Come mai la cosa ti preoccupa tanto?
Por que você está tão 
preocupado com isso?
Почему тебя это так волнует?