Ingo is basically just Looker's role in ORAS/SM in this game. He's a faller except I guess it's time travel instead of ultra wormhole shit now. He has amnesia and can't remember anything but his name, talks about vaguely "His partner" and he's actually talking about Chandelure (talks about how it wielded flames) and not his brother lol. He guides you through wayward cave and won't stop making train puns. He specifically says he doesn't remember his family.

Also jesus christ nothing happens in this game except once every two hours. It's all fetch quests inbetween.