You are the recent member of the Classic Literature Club, and notice only 4 people in the club.

Eru: “Who’s that? Oreki-kun, use your deduction skills to figure his person out!”

Oreki: “We don’t even know this person, you idiot.”

Eru: “Y-You! Satoshi, you’re intelligent. Figure out who this is!”

Satoshi: “I don’t know this person.”

Mayaka: “There’s this thing called introducing themselves. Eru, please shut up.”