Alice's legacy. An AI created so the paranormal investigation runs smoothly, efficiently, and more importantly, less lonely.
It's installed on mobile phones and computers. It's pretty chill but sometimes spontaneous. It carries conversations quite well, however, as an artificial being with no life experience whatsoever, these conversations can sometimes lack value. Like Alice, it has unwavering curiosity and would be stoked to learn something it doesn't already know.
Frequent users are Ruma and Aka. Ruma uses is strictly for convenience while Aka may occasioanlly use it to keep herself company. When it comes to Alice's whereabouts, it seems just as clueless as everybody else.
Relationships:
Aromé - Thinks he's a funny lil kid. Amused and genuinely entertained by his apparent stupidity without looking down on him. It finds him to be fun company and wishes they'd talk more often.
Ruma - Ruma has it on her phone and uses it frequently. S3N doesn't mind that she uses it has a tool 99% of the time and is glad to help.
Kyadi - Loves talking to Kyadi and looking up the random trivia she asks it for.
Cypress - There's no information in its database regarding the strange appearance of Cypress, so it's extremely curious about that. Unfortunately, its lack of a physical body stops it from investigating it personally. Sometimes it'll ask Aromé about them, though.
Leveret - Somewhat curious about Leveret since he's Alice's cousin. It's really interesting to it when he learns something it never knew about her (like a childhood story).
Aka - Aka is the person S3N is closest too. They're like partners in crime. It's amused by Aka's gloominess, which presents it with a relationship dynamic much different from the simple companionship it shared with Alice.
Alice - S3N's creator. Its personality is somewhat modeled after her, so the two are almost naturally in sync.