The Sket-dan is challenged to a battle of wits by Enigman, the masked President of the Quiz Club (and his lovely assistant Quettion). Later, a drop-dead gorgeous second year comes to the Sket-dan to ask for advice... about love? Can the Sket-dan unravel the enigma of love?
You've finally noticed, Sket-dan members!
¡Al fin se dieron cuenta, miembros del Sket-dan!
¡Por fin os disteis cuenta, miembros del Sket-dan!
Finalmente vocês notaram, 
membros do Sket-dan!