I have the quest from Sun Hing to Talk to Din HO and defeat the Plague Oni but i cant enter the gate. I can't activate the Lever. Any Ideas ?? I've checked and rechecked and here are the area's i've completed. Jade Palace, Hametsu Village, Tatakai Outpost, Crimson Field, Shoshun Village, Cave of Solitude, Kishibe Village, Except for the ones in Shirataki Temple.