Suitoryu/Rintoryu

Rintoryu is a style created by Boukerin Ieharu. A style unique to himself, Rintoryu is an expansion upon its father style, Suitoryu, wherein the user manipulates water with his or her blade(s). Rintoryu, takes this a step further, and freezes the manipulated water, allowing them to have free control over ice.

This is done by Ieharu contracting his muscles as much as he possibly can. Due to this contraction, it extremely lowers his body heat. Due to his sword conducting this heat, it allows him to directly freeze the water he is already manipulating.

The main drawback of freezing this, is that Ieharu could not do it for long periods of time at the risk of freezing himself or giving himself severe frostbite. This was later countered using Nietoryu, and after the timeskip, he was capable of mastering the style, negating the drawback with Busoshoku Haki.