Interesting how this is only the 4th episode and there's already a flashback scene. We are just getting to know the characters, however they're reminiscing about their high school friend. It makes sense. You get a glimpse how they were as teenagers. Their before wild friend is now a nun. Imagine going to your high school reunion and you see a classmate you never expected to become a nun or a priest? Probably not a big deal to some but to them a shocker.
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