A teen idol, Yui Saikawa, enlists Kimizuka and Natsunagi--who has taken up the mantle of legendary detective--to guard a priceless sapphire. In preparing for this, the two realize that more than just a precious jewel is at risk.
♬ The express train of love
can't make any stops ♬
♬ قطار الحبّ السريع لا يتوقف ♬
♬ El tren exprés del amor
no se puede detener ♬
Mais dis-toi que…
O trem expresso do amor Não
pode fazer nenhuma parada