Ch. 171Breathing Style
Aizen tested the Demon Slayer Breathing Style on Hiraga Ichirō and learned to reproduce its principles after observing his techniques. When Aizen staged a lethal attack, Hiraga Ichirō’s desperate will to live triggered his transformation into a Shinigami.
- Aizen attempted to use Breathing Style principles with Kyōka Suigetsu while Hiraga Ichirō explained the techniques and asked for power.
- Aizen used the Hōgyoku to alter Hiraga Ichirō, then tested his strength as Hiraga Ichirō attacked with Swamp Breathing.
- Hiraga Ichirō trapped Aizen in Drowning Heavy Mist, but Aizen analyzed the technique and dispersed the mist with a breath and sword swing.
- Aizen mastered the Breathing Style’s basic principles and appeared beside Hiraga Ichirō with a sudden sword strike.
- Hiraga Ichirō’s terror and desire to survive awakened another power, and Aizen stopped his blade as Hiraga Ichirō transformed into a Shinigami.