Chimiko is the toriningen or kaibutsu of Answered Prayers. She wears what appears to be a white robe top with a long red skirt. She can be found in many places within the Spirit Realm, typically having duplicates in one area.
If not already bloody, she will remain calm until hit with the Shovel which causes her to go into her 'insane mode' -- her face suddenly becomes bloody and she will attempt to chase you. Should you make contact with a bloody one, you will be instantly teleported to an enclosed, inescapable area where the only way out is to exit the Spirit Realm.
It appears that said enclosed area you are teleported to has similarities to the Underwater Ship, showing a single window where you can see water outside.