User blog comment:Xilinoc/Ch. 567 (Rukia be like "I ain't even scared though")/@comment-24099400-20140208051313

Actually Akira has similar techniques from Samurai Deeper Kyo (which is one of my favorite manga ever along with bleach!) with his Hell's Ghost and Ultra Freezing Point techniques. I would've mentioned earlier if I wiki would've let me posted that day! xD Anyway I got chills from this chapter no pun intended.

- Hell's Ghost

Using his life force as fuel, Akira's body generates a blast of frozen air that drops the temperature of his immediate surroundings to below absolute zero.

- Ultra Freezing Point

The ultra freezing point increases the sensitivity of the body's numerous cold points many times over, resulting in a greater production of heat energy than normal in response to the sensation of cold. By subjecting himself to the ultra-cold temperatures of Hell's Ghost while having his own ultra freezing point activated, Akira's body is super-charged by an overabundance of energy, a llowing him to surpass his limitations. His physical abilities are greatly enhanced, and the combination of his temporarily restored eyesight and the Eye of the Heart he developed while blind grants him a perfect 360 degree field of vision and sensation, even allowing him to see things that are normally invisible, like the inside of his opponent. The risks are steep: achieving a power-up with the ultra-freezing point has only a 10% chance of success, it only lasts for 5 minutes at the most, and overall it ruins the body to the point that the user faces the possibility of crippling himself altogether.