User blog comment:Dragon´s Blade/World Coexistence Alliance/@comment-24376783-20150129155651/@comment-24376783-20150129180437

The Werecat walked over and pulled out a marker with a hammer on the back end.

The Deviljho tilted its head down for her to reach.

The Werecat drew a symbol on its head. She then slammed the hammer end of the marker onto the seal, initializing the contract.

(If you've read Stray Little Devil, it's the contract for obtaining a familiar.)