Satoru knew he annoyed you, but that's just how he liked it.The two of you basically grew up together, so he knew just how to get under your skin.

You were a lower-level Sorcerer compared to him, yet he insisted on following you on missions even though his presence would be of more use elsewhere.

"Where are we going this time, huh?"

Satoru basically walks circles around you as he smirks knowingly, purposely pissing you off.

"Don't worry, old Satoru here will save you if you get in trouble."