canon
Simon ♥ Nia's husband and the love of her life. They are soulmates; if Gurren-Lagann were a series of parallel universes, Simon and Nia would meet in every one and fall in love. When Nia died, she didn't expect to come to the City. But because she's here, she knows Simon will come for her, no matter how long it takes. She'll never stop believing in him.
Kamina ✬ Simon's "bro", and by that logic, Nia's brother-in-law. Kamina died before Nia met the Great Gurren Brigade, but the impact he had on them--particularly on Simon--is felt strongly by Nia. She admires him greatly.
Leeron ✬❀ The Great Gurren Brigade's mechanic, and something of an elder brother/father-figure to Nia. She values his opinion and advice.
City
Estelle ❀ Nia's flatmate. A sweet and honest girl, and a kindred spirit. They sound rather alike...
Heine ✬ She will befriend you, Heine. Just watch. 8|
Ishida ✬ Nia thinks he's sweet, even if he tries not to show it.
Leon ✬ Nia's flatmate. She knows that he's nice deep down, despite his astonishing rudeness.
Natalia ❀ Nia's employer. They will cook together and end the world.
Orihime ❀ Two peas in a City-pod.
Setsuna ✬ Nia thinks he's sweet.
Yuri ✬ Nia's flatmate. He's a kind person, even if he shows it in odd ways sometimes.