Ryuken has been murdered! If they want to get their student ID, the three brothers must find the true culprit. When Ryuken and Yuria take a tumble down the stairs together, they accidentally switch bodies. The strange situation is complicated even further when Shin arrives... Thouzer and his gang make their passionate singing debut as Nanto DE5MEN's first single is unveiled.
Kenshiro-san, if we don't find the culprit soon,
كينشيرو-سان، إن لم نعثر على القاتل قريباً
على الأرجح سيردي ضحية أخرى
Kenshiro, wenn wir nicht
bald den Täter finden,
Kenshiro-san. Si no encontramos al 
culpable, podría matar a alguien más.
Kenshiro-san. Si no encontramos 
al culpable, podría matar a alguien más.
Kenshirô.
Kenshiro-san, se non lo troviamo al più presto,
 il colpevole colpirà ancora!
Kenshiro, se não descobrirmos o culpado
 logo, ele pode fazer outra vítima!