Ini Miney was a "parapsychology" college student who appeared at first to be scatter-brained with little to no understanding of events around her. This was revealed to be an act however as under pressure, she was calm and intelligent.
Ini Miney had a sister, Mimi Miney, who was involved in a malpractice incident at the Grey Surgical Clinic that took place on May 2, 2016. On the 24th of the same month, Mimi and Ini were involved in a car accident in which Mimi crashed her car into a road barrier with Ini in the front passenger's seat. Ini died and Mimi's face was burned beyond recognition. Mimi decided to claim to be Ini so that her face would be reconstructed as such and she would be able to restart her life in the guise of her sister.
Thus, the Ini Miney who appeared as a witness in Maya Fey's second murder trial was really Mimi Miney. This means that nothing is known about the real Ini other than her apperance, although Mimi's mannerisms may be based on her deceased sister since Mimi's real personality was revealed when confronted.