Adam

Irregular is the entity created after the execution of Allen Avadonia and dwells in the womb of the Master of the Court. It's hinted that he will take the role of Master of the Heavenly Yard.

Re_birthday (EC 505-???)
Irregular makes his first appearance in Re_birthday. Some time after the Lucifenian Revolution, Irregular woke up inside the Clockworker's Doll and found himself chained. His arms had red handcuffs, which represented the bloodshed that he committed, and his ankles had blue shackles, which represented the tears he had caused. He then hears a voice in the darkness, saying that he will be staying there for all eternity. Resigning to his fate, Irregular recounts all the evil that he had done. Suddenly, he hears someone's voice singing and his chains disappear, signifying that he will be reborn into the world once again.

Master of the Court (EC ???)
Irregular is mentioned in Master of the Court. The Master of the Court treats Irregular like her cherished unborn child and tells him that his time will come soon.

Capriccio Farce (EC 998)
Irregular appears in Capriccio Farce for a brief moment.

Connections to Other Characters
Master of the Court: Trapped inside of her womb, waiting to be reborn. She thinks of him as her cherished unborn child.

Conceptualization and Origin

 * Irregular, and by extension Allen Avadonia, parallels Jesus Christ. Irregular was conceived in the Master of the Court's womb without a father, and it is hinted that he will be reborn as more powerful being: the Master of the Heavenly Yard.