Shin's summons to the castle doesn't go exactly as he thought it would when the princess challenges him to a duel. Then when the aftermath of their fight goes horribly awry, it's up to Schnee to investigate. 
Well, even if it wasn't on purpose,
it easily could have killed someone.
كان من الممكن أن يُقتل أحد ما بسبب
.ذلك بسهولة وإن لم يكن عن قصد
Nun, ich habe es zwar
nicht absichtlich getan,
Aunque no haya sido a propósito,
podría haber matado a alguien.
Aunque no haya sido a propósito,
podría haber matado a alguien.
Ma foi, je n’ai pas fait exprès,
Beh, anche se non è stato intenzionale,
Bem, mesmo que não tenha sido de propósito,
isso facilmente poderia ter matado alguém.
Отчасти они правы. Да, это было случайно,
 но меч мог и убить кого-нибудь.