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?
Above is a body of water, and below 
is a great fire... What is it?
Arriba mío hay un caudal de agua y por 
debajo un fuego abrasador... ¿Qué soy?
Por encima de mí hay un cúmulo de agua y
 por debajo un fuego abrasador... ¿Qué soy?
O que é, o que é? Em cima tem um 
corpo de água e embaixo fogo?