InuYasha and Kagome meet a young samurai named Amari Nobunaga. He leads them to a castle where a vengeful toad yōkai has possessed the reigning prince. At nightfall, the three infiltrate the castle in order to rescue the captivated Princess Tsuyu. The toad yōkai prince, who has a shard of the Shikon Jewel within him, attacks them and takes Tsuyu to a room full of the souls of women. The others soon arrive and manage to free Tsuyu. InuYasha and Kagome are able to case out the toad yōkai and claim its shard of the Shikon Jewel.