Spiral Training

Red Baron reels when Jiji's Evil Gun actually connects, shocked that a being made of smoke can be physically struck at all. Pleased with the landed shot, Jiji fires another Evil Gun, which Red Baron dodges before lunging with a punch. The Evil Eye swaps in for Jiji, blocking the blow with his elbow and answering with a kick, but he misses and is knocked back. Jiji trades places again and lands a third Evil Gun on Red Baron, who demands to know how. Jiji says he is wielding Spiral Power, a technique Seiko taught him.

A flashback shows Seiko first presenting the idea of spintronics, which she believes could apply to Spiral Power. She notes that the twenty L-form amino acids in the body's proteins spin left, whereas sugars along with genetic material spin to the right, their behavior varying by rotation. Leftward spin, she says, releases or loosens energy, whereas rightward spin contains and stores it. A left-rotating palm wave therefore works better on corporeal foes that respond to loosening energy, while a right rotation suits ethereal enemies built from loosely bound energy. Jiji admits a palm wave already takes everything he has, leaving no room to add spin, and Seiko tells him to file the idea away for later.

As Jiji readies another Evil Gun, he tells Red Baron that his smoky, L-form energy leaves him open to a rightward-spinning attack. Unable to follow the science, Red Baron rushes in and kicks Jiji away, insisting understanding will not let him win. Watching Jiji slip back into his Evil Eye persona, Red Baron observes that swapping control with the yokai is all that lets him endure the punishment, and that the protective spirit energy also stops him from unleashing the Evil Gun. He seizes the chance with a savage barrage, an uppercut to the gut and chin and a storm of punches, telling his foe to give up since blocking the Evil Gun makes victory impossible. Yet the Evil Eye ducks a kick to the head, presses both hands against Red Baron, and lands a forceful kick that launches the yokai and bloodies his mouth. Red Baron realizes his opponent has reached a new state where Jiji actively channels the Evil Eye's power, and the young man tells him that his own genius is how he intends to win.

The Evil Eye and Jiji alternate to either withstand Red Baron's strikes or hit him back. A flashback shows Seiko teaching spintronics: leftward spin loosens energy and suits corporeal foes, while rightward spin contains energy and works on ethereal ones. By striking Red Baron's smoky, ethereal body with rightward-spun ki, Jiji deals far greater damage. Red Baron physically overpowers the Evil Eye to keep him from switching to Jiji, but the two seemingly fuse, gaining both high resistance and ki control.

Chapter 205 runs 19 pages and continues the Shimane Arc within the Ultimate Yokai Saga, released on August 5, 2025, in Volume 24. Its Japanese title is Rasen Undō.