It's a good thing Hanzo is a light sleeper.

He'd trained himself with that habit for whenever he found it necessary to sleep while on the road or in some uninhabited area. There was no telling when whatever shadows or rogues of the night would come forth and attempt to take their picking on one's sleeping form. Now, it was more than enough to be alerted by the blood-curdling scream of Sana, and a subsequent cry or roar from some other sinful-sounding entity. It was what looked like an evil or demonic paladin, riding what could only be a hellhound. 

He demanded a child, some specific one that was here, and did not hesitate to attack when the others tried to assault it. Sana got herself badly injured, and Hanzo himself weighed the options of how well he could fare against this beast. But then again, who would this monk be if he were to refuse to aid?

Gathering his will for the incoming fight, Hanzo opened the inn's window wide, backed up, and performed a running headfirst leap out of the second story. Throwing his body in a forward twist, the monk righted himself to fly at the antipaladin with an outstretched kick, hoping the force could knock the corrupt man to the ground.