The origins of the name bodyconian are unclear, however it might be translated as "fake" or "empty" body or as a type of person who takes part in a dance off. The name could also refer to the body-con style of dress that they wear.
Within the Megaten universe it is a type of android or corpus, similar to the manikin, that appears to house the souls of the dead. Generally the lost souls that are trapped within a bodyconian are put there through dark rites with their memories stripped away. They are said to be unable to die as their bodies were never actually alive, and act as little more than puppets for their masters. Because their body is undead, they are seen as a type of zombie.
"Origin: Tokyo. A flashy young lady who is now a zombie. Death hasn't changed her lovely looks, but now she has a fatal bite."
—Shin Megami Tensei A-Mode DDS Dictionary
The Bodyconians are a slave race created by the Baron in Black and the Count in Red to accompany them and their adopted daughter, Alice in the small, artificial Paradise they have created in Roppongi; as they are deathless souls trapped in artificial bodies, they can never abandon Alice, so she will always be cared for. The Law Hero's girlfriend was seized and converted into a Bodyconian, but since she still remembered her life as a human unlike the other Bodyconians, she was locked in the disco club in Roppongi. If the Protagonist finds her, she will ask him to save her using a Soul Incense. This will free her soul, making her finally die as she states herself, and shifts the protagonist towards Law. In the GBA and iOS versions, this is required to get the Jade Ring Visionary Item; as with all visionary items, once it is acquired, the player can save and reload to before freeing her to keep the Jade Ring without the alignment bump or using a Soul Incense.
"Who is there? Ah, it is you, the Emperor's favourite. You are not a regular human, because He chose you to rule over us. Very well, show me your strength if you want the doll..."
The Bodyconian is one of the 5 Zombies that The Emperor summoned to protect one of the 5 Summon Dolls needed to summon him, during the night of the 1st day. She can be found at Room 2A and gives the Sleepy Doll to Hazama after defeat.