"Haku's Secret Jutsu: Demonic Mirroring Ice Crystals" (白の秘術・魔鏡氷晶, Haku no Hijutsu - Makyō Hyōshō) is episode 13 of the original Naruto anime.
Two of Gatō's thugs arrive at Tazuna's house to kidnap Tsunami for leverage against Tazuna. Inari faces his fear and attempts to stop them, giving Naruto the opportunity to defeat them. Before leaving to join the others at the bridge, Naruto apologises to Inari for calling him a coward and acknowledges his bravery.
Meanwhile, Sasuke and Haku fight, and Sasuke's new-found speed gives him an advantage. To counter this, Haku traps Sasuke in his Demonic Mirroring Ice Crystals. Haku violently cuts Sasuke with his needles at various parts of his skin. Sakura attempts to save Sasuke by throwing a kunai, but Haku catches it. However, before Haku can use it, he is knocked out of the mirrors by shuriken, thrown by none other than Naruto, who arrives just in time.