Clay, Mark and Michaelis in KNY

A tall, blue haired goat demon with six eyes and a knack for blacksmithing.
A tall, maroon and brown haired demon slayer with an ego.
A small, golden blonde haired demon that manages impossible feats.
Three siblings fallen victim to the demon progenitor.
Tanjirou, a young demon slayer with a hard head and incredible smell.
Nezuko, a beautiful demon that was unwillingly turned.
Zenitsu, emotionally fragile lightning breather.
Inosuke, a loud and... odd boy, raised on a mountain.
Will the seven of these oddball characters manage to create a group powerful to destroy Muzan Kibutsuji? Or will his plan to take over and kill the Demon Slayer Corps come to fruition?