Tanjiro and Kanao would eventually marry and start a family, having two great-grandchildren by the names of Kanata Kamado and Sumihiko Kamado between them.
After the battle, Tanjiro returns home with his sister and friends. Later it is revealed that he married fellow slayer Kanao Tsuyuri.
But Demon Slayer introduced Tanjiro's main love interest briefly, and she doesn't really return until the end of the season, when she is fighting against him. His love interest that develops as the story goes on is Kanao Tsuyuri and their romance is quite adorable.
But when he realizes Nezuko is still alive, Tanjiro's love for her outweighs any other thoughts he may have and his single-minded focus becomes to get her to help. Even when confronted by Giyu Tomioka, the Water Hashira of the Demon Slayer Corps, Tanjiro begs him to spare Nezuko.
Nezuko Kamado
Zenitsu also protects Nezuko multiple times when she is in danger, evident during Zenitsu's first meeting with Inosuke Hashibira and the battle against Enmu in the train. Eventually Zenitsu and Nezuko would marry and start a family as evidenced by their descendants.
It is confirmed in the Volume 23 extras that Inosuke and Aoi did eventually end up together and that they have two great-grandsons, one of which is Aoba.
Eventually Zenitsu and Nezuko would marry and start a family as evidenced by their descendants.
Nezuko marries Zenitsu Agatsuma in the Demon Slayer series.
Shizuka is seen often teasing Sanemi and making him annoyed, nevertheless, the two had still created a strong bond and relationship with each other. Eventually, after knowing each other for a while, Shizuka finally ended up having the courage and confessed, leading to them getting married after awhile.
Giyu also states how he feels about Shinobu, saying he thinks she is both hardworking and serious, along with stating that she talks to him a lot and mentions she looks pale, implying he might be worried about it.
After Doma's demise, Kanao wears Shinobu's hair pin instead of Kanae's, as the latter was destroyed during the fighting. Furthermore she loses visibility in her right eye due to unleashing the final form of Flower Breathing, even though the eye is unaffected visually.
Doma grew fond of her due to her beauty and singing ability, intending to keep her alive until she died of natural causes.
Tanjiro and Kanao would eventually marry and start a family, having two great-grandchildren by the names of Kanata Kamado and Sumihiko Kamado between them.
Furthermore, to Tanjiro, Inosuke and Zenitsu's surprise, the Sound Hashira has three incredibly beautiful wives.
While Tanjiro and Kanao have certainly kissed, the exact moment of their first kiss was never shown.
During Tanjiro and the rest of the Hashiras' showdown with the Demon King Muzan, Tanjiro is mortally wounded and dies. At the same time, Muzan receives a particularly fatal lil' booboo himself. As Muzan is about to shuffle off the mortal coil, he uses the last of his powers to turn Tanjiro into a demon.
Since Akaza expressed his interest in Rengoku owing to his strength and the ability to fight, fans took that as an opportunity to ship the two characters.
Demon Slayer has peculiar characters with incredible strength, skill, and presence. But, among this group of eccentric people, Kyojuro Rengoku still stands out from his colleagues due to his upright and exceptional bright personality. Yet, his fiery hair is also one of the biggest reasons he stands out.
Though he has no romantic interests, Kyojuro has many people that he shares a close relationship with. One being Mitsuri Kanroji, the Love Hashira.
Nezuko is the daughter of Tanjuro Kamado and Tanjiro's younger sister who is turned into a demon Despite Muzan Kibutsuji assumption that he has killed them all in his attempt to sire a sun-resistant demon, Nezuko survives as a demon with her mind mostly gone.
The reason why Nezuko Kamado acts like a baby now, unlike most demons in the show. When Nezuko was turned into a demon, she went into a childlike state. Other demons just became a darker, twisted version of their past self, minus a few memories.
It's implied that the characters from the original series have all since died and have been reincarnated in modern day Tokyo in the final chapter of the series, but two key characters confirm that Nezuko Kamado and Zenitsu Agatsuma eventually did have a family together as their great grandchildren, Yoshiteru and Toko ...
Therefore, it is safe to assume that Zenitsu and Nezuko end up together and have kids in the future. This is proof that Zenitsu loved Nezuko and she too came to love him at some point in time.
Her hair is long, black, and wavy. It reaches just below her waist, turning a flame-orange color as it passes her elbows, and appears to be crimped into large, straight ridges, worn side-swept drastically to her left.