Karasuguchi won't let me into the training grounds

[captainfatts]

He keeps telling me that I need to equip a magatama when I've got 4 equipped. I've tried everything that I can think of but he keeps saying that and no other players give a damn.

[Ryxa]

Uh. Try equipping the very first magatama you ever get. It's like gokutsu or something? I forgot.