When it is finally night, return to the Cutters' and find the part of the roof you can climb to. Bomb a hole in the roof and drop down to find Mr. Cutter sleeping and Mrs. Cutter sharpening her knife. Bite Mrs. Cutter and drag her left, pulling her into the moonlight shining in through the hole in the ceiling. Her true form, a Crow Tengu will be shown (as will Mr. Cutter's), initiating a fight with the two monsters.
Use a Power Slash brush stroke to knock the pair out of the air, then use more Power Slashes to damage them. You can also simply stand guard and wait for them to throw up an attack. As they toss a small skull towards Amaterasu, get ready to counter the attack with a parry. With both enemies are defeated, you will rescue Chun, the Sparrow from the Sasa Sanctuary.Now is the time to pay a visit to the Sasa Sanctuary (if you had previously, you would have been rejected by the birds on guard). Follow Chun's lead to reach the sanctuary entrance along the northern wall of Taka Pass. The trick wall will disappear if you go through the Torii, letting you travel to reunite Chun with the Sparrow Clan.