Created by Maya Erskine and Anna Konkle, “PEN15” stars Erskine and Konkle as 13-year-old best friends Maya Ishii-Peters and Anna Kone as they navigate the highs and lows of middle school in the year 2000. The catch: they are the only adults playing kids; the rest of the kids are played by … well, kids. Each week Josh Wigler (@roundhoward) and Emily Fox (@emelette) head back to school with Emily’s lifelong best friend Leigh McLaren to talk about Hulu’s “PEN15.”