I'm just thinking of when the TWSTD dude meets your parents and decide to go somewhere for dinner, and the whole ride there is a little awkward. That and having to explain that you got isekai'd and the dude is from that other world so he might seem a little strange to them. ESPECIALLY IF THEY'RE ONE OF THE NONHUMANS!

Dad: Why does he have dog ears?

Me: DAD WE TALKED ABOUT THIS

•••

Mom: He is a... quintet?

Me: CATER, DON'T USE YOUR UNIQUE MAGIC!

•••

Brother: Why is there a large white dog in the middle of your room?

Me: JACK NO!

I'm pretty sure wolf form Jack would be a hit with my younger cousins...they live far away tho.