All of the listed characters exist in the same universe. Now including the remainder of  Ivana_Hewlett's family, and my newest character, Azan.

This is the most accurate chart, though is subject to change.

Notes & Clarifications

-- Sera, Fisher and Carmen work together at Leap Year Resto-Tune, a repair shop co-owned by Sera's adoptive father. It specializes in rebuilding, tuning and repair of older American cars, specializing in Mopar Performance. Also dabbles in motorcycle repair.

-- Sera, Greifer and Carmen are dating. Their relationship is semi-open. It started as just Sera and Grei. They're strong emotional rocks for one another, but some of their sexual habits don't quite line up. And Sera still has a normal, human menstrual cycle. Carmen's inclusion is a carry over from when she and Sera "dated," and Sera flat out telling Grei that Carmen has a crush on him. Sera/Carmen basically do lesbian stuff on whims, Carmen/Grei is the primary outlet for when Sera is on her period.

-- Vincent is the owner of Ursa Major Fitness, an MMA-style gym that also features general exercise equipment. He also is the strength and conditioning trainer. Greifer works as a general trainer. Makelina runs the smoothie bar, along with their social media presence. They spar, tell tales, hang out in the sauna and drink beers.

--  Ivana_Hewlett is a nurse turned domme (because who would of thought that medical fetishes could pay so well). Became a licensed body piercer as a stopgap, and works part time Pop Top Piercing & Tattoo. She did all of Ingtail's work, all of Genevive's work, Carmen's clitoral hood, Sera's nipples and Fisher's navel.

-- Ivana is the dominant in the Sub/Dom relationships she has with Carmen and Kamden (Peleceh and Birdi, respectively).

-- Genevive is the owner & executive chef of G.S. Confections, a sweets shop she started after her mid-life crisis. Ingtail is her sous chef, and crafts traditional baked goods. Genevive and Kamden focus on candies.

-- Kamden, Fisher and Chester are college roommates, splitting the cost of an apartment. Kamden is a culinary major, working at G.S. Confections. Chester is a scholarship student-athlete majoring in cyber security, working tech support remotely. Fisher is a scholarship student-athlete majoring in business management, working at Leap Year.

-- Makelina works in a small business coffee shop to keep busy while not at Ursa Major. She uses her contacts to get 100% Kona to the shop, making it one of the more popular locals thanks to their 25% Kona Blend (compared to the 10% industry minimum). She likely has served some form of beverage to everyone in universe.

-- Tituba is a former Registered Nurse turned therapist. She also owns Blue Savannah, a medical marijuana dispensary.