So Levi definitely gives off a sub-only watcher type of vibe. I can imagine his confusion of MC trying to tell him to watch certain anime in English.
Would take awhile, but after Ghost Stories, would definitely see the appeal in voices actors letting loose on the anime. Though, he was horrified at first.
AN: This idea kinda came up when a random thought came up 'How would Levi react to dubs like Ghost Stories'?