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?
Three cats cannot catch 
100 mice in 100 minutes.
Tres gatos no pueden atrapar cien ratones en cien minutos.
Tres gatos no pueden atrapar cien ratones en cien minutos.
Três gatos não conseguem pegar 
100 ratos em 100 minutos.