"I'm not confident we can deal with six people head-on"
Look at Shin trying to feign weakness with that BS. I'm sure even 60 bandits would be no match for him if he were serious.
Those two bandits were lucky Tiera "reset" Shin's aggro on them. Who knows, he might've even castrated them or gut them like a fish if he were to start "questioning" them in that state of bloodlust. Seeing their depraved and sleazy smirks before battle seem to have pressed a specific anger button in him.
For some reason Tiera momentarily turns into a human when she's drawing her bow on page 11. 99.9% chance it's just a drawing error, but it would be a very curious detail if it wasn't. She used to be under illusion magic looking like a catgirl before.