Webzenitsu agatsuma, a cowardly demon slayer, creates a new form of thunder breathing to fight kaigaku, his former teacher and an upper moon six demon.
Webthe thunder breathing style was taught to zenitsu by jigoro kuwajima, the former thunder hashira.
However, zenitsu failed to master all six forms of the breathing.
Webas we all know zenitsu is capable of only performing the first thunder breathing form, thunder clap and flash which he fully perfected.
He also created 7th form.
Webkaigaku showed off his prowess in the thunder breathing technique by displaying all six forms, but zenitsu came out of nowhere, dashed forward at blinding.