Ichi

Ichi are the Hydra saint of the XX and XXI centuries.

Galact Wars
Ichi is not a villain in this tournament, being only a competitor. He was defeated by Hyoga, and was too injured to fight against Ikki and don't become one of the 5 main bronze saints, get secondary importance.

Fifth Movie
Ichi serves Artemis after Athena give the Earth for her. But, is not known if he was a loyal serves to Artemis.

Omega
In Omega, Abzu transform the Earth matter, and it gets splited in 7 elements (some people gets more than one element), and, only controlling (to attack, need to use, need to control) it element, attacks can be accomplished, and Ichi can't control his element, getting secondary importance again.

He accepts serve Mars in exchange for a Silver Cloth (Hydrum) and appears convenently in the Silver Saints Chapter. He was not loyality to Aria, like the another silver saints. He was defeated by Kouga, and after, swears loyality to Athena again, getting back his bronze cloth of Hydra.