Mirri is one of three named characters trying to assassinate Lleril Morvayn due to his ordered execution of their ancestor. The Dragonborn will be asked to find proof of her and her parent's involvement in the assassination attempt and will ultimately end up killing them.
- If not killed in the Severin Manor, Mirri will be later encountered in the Morag Tong hideout, dressed in Morag Tong Armor. Her Dunmer Clothes are nowhere to be found.
- When using the command console to reveal Mirri's relationships, it is revealed that Mirri is supposedly Vendil's lover and not his daughter, while Tilisu is listed as a co-conspirator, not a relative.
- When Adril Arano is asked about the Severin family, he mentions how people have noticed that Mirri appears close in age to Vendil, giving support to the actual relationships mentioned above.
- Sneaking into Severin Manor while Mirri and Vendil are the only ones there can also allow you to eavesdrop on a conversation that involves Vendil expressing worry that Tilisu is catching on to their affair. The conversation ends with Mirri telling him not to worry, with the word "father" at the end being in quotes if subtitles are active.