Since Kelsier was out on a trip somewhere, he told you, his first student to train Vin till the time he was away. You were ruthless, which made you the best type of teacher for Vin to learn from. Who knew what would happen in the future if despite being Kelsier's student, Vin's still secretly treated like the daughter that Kelsier had longed for? She might very well die soon. Your job is to train her well enough so that she could defend and attack in equal measure without any hesitation. What happens next?