C60 Forging the Soul Slashing Blade

Tenno carefully channeled his Chakra into the Wine Crystal, little by little. As he did, the crystal took on a deeper hue, resembling the rich blue of a sapphire. Only when his Chakra was reduced to a scant ten percent did Tenno feel the crystal fully saturated with energy. He was amazed that it could hold nearly all the Chakra of a Jonin-level ninja