Key Tyrant

Origin
Key tyrants are, as their name implied, a Tsukumogami created from unused keys. Usually, when one house has been standing for long enough, the same goes for the keys. Many Key Tyrants has been born from being used over 100 standard years in order to turn into a Tsukumogami, but many chose to stay in their form of being simple keys.

Although their simple desire to be used to "Unlock" strongly etched itself, some of their own kin chose to rebel and no longer wishing to open the doors they are responsible for, their mastery for locking and suffocating tactics are widely employed by some mamonos that owned a dungeon to direct their husband-candidates to not get into a more dangerous areas, which they guard.

Appearance
Key Tyrants are humanoid tsukumogami that has been obsessing over safety for being tools of a locksmiths, so even as humanoid, they had been dressing in an attire with a motif of a lock and keys. a rusted Key Tsukumogami usually are bolder with color associated with red while the more well-maintained take form of the material they are crafted form, for example, an Ivory-made key tyrants are appearing as a Tranquil, White-themed beauty.

Behavior
To most dungeon masters, Key Tyrants are an abundance in term of security, but to more paranoid mamonos such as an Echidna in labor, their service has been employed largely due to their Protective nature. They had been known as masters of lockpicking, subtle tracking and tactics involving locking an opponent inside a confined room and send them either to the exit or to their end.

Their "Tyrant" title has not been given to them just for show, as they are completely in control over a confined space, ever paranoid of themselves being unlocked or the things they belong or are belonging to them. It also applies to their methods of looking for husbands, which are the "Keys" to unlock them. Once a man put his manhood inside them, they will "unlock" all their secrets and fawns to them unlike their puzzling attitude as if it has been a lie, however, to even defeat one is a contest of intelligence, dexterity and insight for a Key Tyrant has been known to govern some lesser Tsukumogamis like Mimics and Pot Devils, making them truly the governor of Mazes-for-hire in exchange of supplies or rare locks.