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?
Why don't you know each other's faces?
¿No se conocen de frente?
¿No os conocéis cara a cara?
Por que vocês não conhecem
 a cara um do outro?