Yamanobe-sensei is back, and this time he's brought a vintage game console for Switch to repair. The Sket-dan ends up getting hooked on the one game he owns for it, but something smells fishy about it...
While you two were playing around, 
I was completing his request.
Mientras ustedes jugaban, estaba 
cumpliendo con la solicitud.
Mientras vosotros jugabais, estaba 
cumpliendo con la petición.
Enquanto vocês dois estavam brincando,
 eu estava terminando o pedido dele.