While Tanjiro and Kanao don't have many direct romantic moments in the Demon Slayer manga/anime, they do end up together, marry, and have descendants, with their closest interaction being at the butterfly garden tree, though a proper on-screen kiss isn't shown, leaving fans to imagine or create fanart of such moments.
You know at the end of the manga Tanjiro and Kanao get married and have children.. they literally always loved each other from the beginning.
Tanjiro is a tad bit naïve about, well, romance. His kisses are usually placed on your lips and forehead. Because he is young and inexperienced, he's still not down for french kissing and whatnot. He also likes tightly hugging your waist and pulling you closer to him when you kiss.
He eventually marries fellow Demon Slayer Kanao Tsuyuri, with two great-great-grandsons, Kanata and Sumihiko Kamado, alive in the present day.
At the end of Season 2, Episode 12, there's a short scene that explains why Tengen has three wives, a trio of kunoichi named Makio, Suma, and Hinatsuru.
While the Demon Slayer Mark typically brings a short life, ending around age 25, manga evidence suggests Tanjiro did live past 25, marrying Kanao and having children, dying of old age, not the curse, after defeating Muzan and living in an era of peace, possibly due to his connection to Yoriichi and the curse being lifted.
Zenitsu Agatsuma harbors deep feelings for Nezuko Kamado, having fallen in love upon their first meeting. His affection is openly expressed, and he instinctively protects her.
Nezuko Kamado
As such, Tanjiro, who is usually calm and polite, will become enraged and attack anybody who harms Nezuko. He is extremely protective of her, though he doesn't stop her from helping him during battles that he cannot handle alone.
Tanjiro leaps into the air towards Gyutaro and attempts to decapitate him, but is seemingly stabbed through the jaw by Gyutaro's sickle.
Over time, however, the skirt was noticeably shortened to only cover her thighs, a modification implied to be the work of the notoriously lecherous uniform tailor, Masao Maeda. Draped over her uniform, she wears a short white cloak, fastened on one side by a dark pink triple knot.
Tanjiro feels like the kind of guy who is traditional in lots of ways, so his go to cuddling position is spooning; him being the big spoon and you being his little spoon of course. He just feels like no matter the situation or place, nothing could go wrong with spooning.
Tanjiro Kamado learns Water Breathing and its ten forms from his teacher Urokodaki. He instructs Tanjiro to become one with the water. The forms of Water Breathing flow as naturally as a river and crash into the target like a tidal wave. Due to its flexibility, it's also well-suited for defense and warding off blows.
She also loses the ability to see out of her right eye due to her using Flower Breathing's final form to take out the Upper Rank, with her eye gaining a defined pupil with a dark ring around it and becoming deprived of its gradient.
Who does Inosuke Hashibira marry? Inosuke Hashibira ties the knot with Aoi Kanzaki.
According to the Demon Slayer's 2nd Databook Suma is bisexual.
At the end of series, Tanjiro and Kanao eventually get married and establish a family.
Shinobu initially assumes that since Nezuko was a demon she was a threat to others, though she decides to make her death swift and painless when she realizes that Tanjiro was her brother.
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.
While many Hashira died in the fight, some survived: Giyu Tomioka, the Water Hashira, and Sanemi Shinazugawa, the Wind Hashira, both survive the final fight, carrying on the memory of their fallen comrades. Tanjiro also survives, and after the war, the Demon Slayer Corps disbands because demons are gone for good.
Although the manga does not directly depict the moment of his passing, according to official settings and the rules of the Mark, Tomioka Giyu ended his life at the age of 25 due to the price of the Mark. His death was not accompanied by battle and pain, but rather a peaceful departure after witnessing an era of peace.
Despite his numerous achievements and growing strength, he never attains the coveted rank of Hashira with the Demon Slayer Corps. This deliberate narrative choice by the creator serves to enhance his story in the face of overwhelming adversity.