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.
Nezuko marries Zenitsu Agatsuma in the Demon Slayer series.
Because if Zenitsu and Nezuko did end up marrying, and their souls were reincarnated into their future generations, Zenitsu's reincarnated self is still overprotective and jealous of those who get close to Nezuko.
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.
Despite having an intense fear of Demons, Zenitsu develops a crush on Nezuko. He tries to convince her to marry him several times and never fails to mention his admiration for her whenever he sees her.
Zenitsu Agatsuma
Upon seeing her for the first time, Zenitsu falls in love with Nezuko at first sight. She apparently views Zenitsu as a "weird dandelion" and did not initially seem to reciprocate his feelings. Although the two are rarely seen interacting together, Zenitsu treats her with affection and care.
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.
After the battle, Tanjiro returns home with his sister and friends. Later it is revealed that he married fellow slayer Kanao Tsuyuri.
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.
This massive amount of debt likely came from his 7 ex-girlfriends. Despite all of them being beautiful, they treated Zenitsu like a slave, tricked him as well as robbing him of his money. Zenitsu also never got to even hold their hands.
Zenitsu, while awake, is aware of his surroundings, and can sense demons quite efficiently with his 'Enhanced Sense of Hearing', but when it comes to even slight contact with a demon, he blacks out. So, to sum it up, his fear of going against terrifying demons that could end his life, drives him to fall asleep.
Fortunately, Zenitsu somehow survives Daki's attack but struggles a lot being trapped beneath the ruins of the fallen house.
Kaigaku overpowering Zenitsu with his Blood Demon Art-enhanced techniques.
When the two originally meet, Zenitsu develops a disdain for Tengen after he attempted to kidnap the girls of the Butterfly Mansion, and due to his flamboyant personality, even referring to him as the "god of idiots." Tengen's frivolous attitude doesn't sit well with Zenitsu's character and often annoys him.
However, Nezuko has been fighting her instincts and hasn't consumed human flesh. That begs the question of her ability to survive. While most demons rely on consumption of human flesh for survival, Nezuko relies on sleeping for long and sustained periods of time in order to slowly regenerate her energy levels.
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.
Furthermore, to Tanjiro, Inosuke and Zenitsu's surprise, the Sound Hashira has three incredibly beautiful wives.
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.
Inosuke was found by wild boars, who protected and raised him as their own. Having almost no memory of his birth mother, Inosuke considered a female boar as his mother. It was revealed in the Demon Slayer manga that the mask Inosuke wears was originally the head of the mother boar that raised him.
According to the creator of Demon Slayer, Koyoharu Gotouge, Nezuko's biological age is 12. This means that while she has been alive for 14 years, her body has only aged to the point of a 12-year-old.
Nezuko Kamado (竈門 禰豆子) is the deuteragonist and main female protagonist of the 2016-2020 fantasy horror manga (and anime) series Demon Slayer: Kimetsu no Yaiba and its stage adaption. She also appeared as the deuteragonist in the live action 2020 stage play adaption Kimetsu no Yaiba: The Stage.
Nezuko might be a terrifying demon, but she's also one of the cutest characters in anime.
Shinobu confessed her love to Guiyu. in episode 18 of Demon Slayer, Shinobu shows her liking to Guiyu.