Michael knew his vague description, to which the guy kinda stuck out like a sore thumb. But all he needed was one person who interacted with the man. And it was pretty easy. You can tell by the items people owned. And Michael actually happened to met someone who did interact with him. So he used his good ol nose to track down the guy. Granted he had to be on all fours and face real close to the ground to get the faint scent and get a lead. But once he did, he was able to stop being weird and made a beeline run for it towards the man
Eventually he found the man anad grabbed him
"SHOW ME WHAT YOU GOT!!!!" that came out as overly aggressive.
Meanwhile the confused merchant just oblidged and showed him the stuff. And Michael not being a stranger to substances, got a vial with what looked like red liquid, but was actually a blood of some kind. Before the merchant got even a say of what it is. Michael just showed the man on his merry way and made his leave himself.
Michael being kind of reckless in his usual state just ingested the blood thing as if it was a strawberry drink. While in actuality it was a sample of blood that acts as a modification. Luckily he is a werewolf. But still pretty reckless to drinking stuff that you dont even know.
But on the bright side it didnt phase him. Not yet at least
While he did spend his day outside, he was making his way back to the guild and thats when things started to kick. It was begining to be sunset. Lovely sight, but Michael wasnt feeling well. He rested against the guild halls door. He didnt get in yet. But he did start to feel a lot of things and started to sweat. He looked at his nails and noticed his usual wolfy longer nails or claws are back. After he expressively remembered cutting that off to appear more human. He felt the change but was surpressing it.
Only now he's starting to realize. Perhaps he should've listened to that merchant. Now he has to deal with unknown consequences.