Saki is told that the pendant which Kyoshiro handed to her in the battle is a part of the clue to find out the treasure of Kinura. Saki meets Nishiwaki and he says it's time to tell her his story. He tells her that he put the Tekkamen on her by following Shichiro's words that he wanted Nishiwaki to do so after he died.
Kyoshiro realizes that the clue to find out the secret location of the treasure is the melody of the music-box pendants, as Tekkamen responds to some kind of frequency. He also realizes that the embossed marks on the two pendants, once combined, make the school mark of Tenchi Gakuen, which is already out of service.
The three go to Tenchi Gakuen and they meet two men, Tendoh and Chidoh, who are watching the treasure. They handed Saki a copper mirror and says the only way to get the treasure is by reflecting the Tekkamen on the mirror.
