Kurikara

The Kurikara Was once the sword of the ancient God, Fudō-myōō. Kurikara gives its user a link with Fudō-myōō, allowing the God to live inside its wielders body. The blade was originally deemed unusable as Fudō-myōō would not allow anyone to use his blade, punishing those he did not deem worthy by driving the wielder insane, or eating away their life force leaving them comatose. After many years of no one wielding it Takeo Hajime was finally able to subdue Fudō-myōō, granting him Kurikara's legendary powers.

Kurikara grants Takeo the ability to cut through Chakra in any form. It also grants him the unique ability Sword God Transformation Technique, which allows him to temporarily merge his chakra with Fudō-myōō.