Combination Sealing Technique: Oceanic Prison

This is an elite sealing technique used by ANBU-level Nekiogama clan members to restrain powerful fugitives. Though it is usually a team jutsu, Genzo Nekiogama can use it alone, though it is inferior to its larger version.

After forming the needed hand signs, the user manipulates a nearby water source to surround the opponent with a vast quantity of water, compressing the sphere rapidly until it settles around the target as a large sphere with enough water to fill a small lake. The user than manipulates a large quantity of metal to create a web of chains the surround the sphere, complete with six lock-like pieces that form on the top, bottom, and sides of the sphere. These 'locks' have special seals that require a long and complex code to unlock. In the space bewteen the chains and the water spehere are by three special barriers that can render someone unconscious in one touch. The target is levitated in an air pocket in the center of the water sphere and is able to move and breathe freely. However, if they venture into the sphere, they are liable to be crushed over by over a ton per square foot of water pressure. This sphere deters the target from trying to escape. If they do survive the water sphere, they have to endure the barriers, which can kill an average person in seconds. Even if they fight their way through those, they have to unlock all six seals on the sphere of chains to escape, in which each seal is gradually restored by the user or users if it is unlocked.

The strength of this technique is great, even forcing jinchuriki, S-ranked missing-nin, and some Kage-level shinobi to endure this technique's power or fail trying. Only a tailed beast, large-enough summons, or a shinobi of incredible ability can break this technique successfully. This ensures that the captured target is delievered safely.

However, this technique requires a gargantuan amount of chakra. Genzo, who has only used it once, passed out and nearly died from exhaustion after activating the technique and forced his comrades to maintain it, in which they almost failed. A team of at least six people ensure that the barrier only requires a moderate amount of chakra from each person.