Sera

She gives the impression of a very kind person who welcomes even demons like Charlie and Veggie. She cares about every inhabitant of Paradise and wants to protect them. She takes special care of Emily, acting as a mother to her, taking care of her safety and wanting her to be happy, protecting her from the truth. She doesn't want Emily to suffer the same fate as Lucifer—becoming a fallen angel for questioning the will of Heaven.

She takes her job as a Seraph seriously and does anything to protect Paradise, including carrying out the annual extermination and sending Lucifer and Lilith to Hell. She claims that organizing the annual extermination of sinners was a difficult but necessary decision, showing that she felt regret and anguish while accepting it.

However, despite regretting that she had allowed the Exterminations, and her own strong sense of responsibility for protecting Paradise, Seraph also showed herself to be careless and somewhat irresponsible in how to deal with the Extermination issues. It has been repeatedly shown how she leaves almost everything about Extermination to Adam and Lute and does not go into details about what exactly they are doing, and leaves them to themselves in many ways. This was shown when Charlie went to Heaven to defend her case in the Heavenly Court. To hide the Extermination from her fellow angels, she ordered Adam to do whatever he needed to stop her, without bothering to handle it herself or delve into the details of how he would do it. This inevitably led to Adam accidentally revealing the truth about the Exterminations to the rest of the inhabitants of Paradise.

During the trial, in the episode "Welcome to Paradise", it is shown that Sera does not believe in the possibility of redeeming sinners and their ascension to Heaven, and at the climax of the trial stated that there is not enough evidence that sinners can be redeemed. Later, in "The Show Must Go On", after seeing Sir Pentius become an Angel and go to Heaven, Sera is visibly shocked.