Adam

Irregular is the entity created after the execution of Allen Avadonia and dwells in the womb of the Clockwork Doll. He is known later as the Master of the Heavenly Yard.

Re_birthday (EC ???)
Irregular makes his first appearance in Re_birthday. Some time after the Lucifenian Revolution, Irregular woke up in a strange dimension and found himself chained. His arms had red handcuffs, which represented the bloodshed that he committed, and his ankles had blue chains, which represented the tears he had caused. He then hears a voice in the darkness, saying that he will be staying here 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 born into the world once more.

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

Capriccio Farce (EC 998)
Irregular makes a cameo appearance in Capriccio Farce for a brief moment.

Connections to Other Characters
Clockwork Doll: Irregular's "mother".