- Name: Ice Release: Thousand Years' Ice Prison (氷遁・千年氷牢 , Hyōton: Sennen Hyōrō)
- Type: Offensive; Long-Range and Short-Range
- Rank: A
- Users: Shiori Miyamoto
Shiori creates many ice pillars which encircle her and her enemy. At her command, these pillars then move towards the enemy, enveloping and crushing it. Though this technique is very powerful, Shiori infers that it takes a considerable amount of handsigns to prepare, and therefore the distraction of her enemy is crucial in successfully completing this attack.