Hinatsuru, Makio, & Suma

I have copied and pasted each of their personalities from the Demon Slayer Wiki

Hinatsuru: Hinatsuru's personality is very similar to that of Tanjiro Kamado. Kind, calm, and nurturing, even when dealing with her co-wives' antics towards each other, much like the latter when dealing with Zenitsu and Inosuke's antics.

Due to her more understanding and calm personality, Hinatsuru often serves as Tengen's emotional bolster, in ways Makio and Suma cannot. Despite only being slightly older than the two, she displays far more maturity and often acts to mediate situations between them, as seen when Hinatsuru spoke with Makio about Tengen and how he lives his life differently to that of traditional shinobi, despite Makio's confusion.

Though generally quiet and and kind, Hinatsuru became angry with Suma and Makio fighting as Tengen lay dying of Gyutaro's poison. She also expressed annoyance when Obanai demeaned Tengen for his efforts just to kill the weakest of the Upper Ranks.

Makio: Makio's personality is similar to Inosuke Hashibira: bold and confident in the way she acts. Out of her two co-wives, Makio tends to have less patience with Suma. When the women fought Daki's obi in the underground cavern, Makio can be seen berating her for being condescending. Later on when the three wives reunite, Makio can also be seen slapping Suma and calling her an idiot after she makes insensitive remarks about Hinatsuru dying.

Despite her headstrong and fierce temperament, Makio does have a softer side that shows when dealing with Tengen. She is seen worrying about his declining health following their major battle, and clings to him in relief after Nezuko heals him.

Suma: Suma's personality is particularly similar to Zenitsu Agatsuma's, expressing overdramatic and exaggerated emotions in practically every situation she's in. She also tends to give off a fearful and unconfident attitude when it comes to dangerous situations, as well as a tendency to cry easily, whether due to receiving praise or from fear when being near a demon. She tends to acts immature, arguing with her two co-wives (Makio in particular) and generally irritating them whenever she gets fussy or emotional.

Despite this, she remains a loyal and loving wife to Tengen and cared for the people around her, leading the evacuation of Yoshiwara alongside Makio when the battle between the Upper Rank demons and Demon Slayers became more intense. Her love for Tengen is also prominently displayed when she forgoes her shy and unconfident demeanour and angrily scolded Nezuko Kamado for "cremating" her husband early, later wailing in relief when the poison inside him was burned away.