Demon Slayer's new arc has many noteworthy new and returning characters, but some outshine the others, such as Muichiro, Hantengu, and Mitsuri.

Source: https://www.cbr.com/demon-slayer-swordsmith-village-greatest-characters/

He and Mitsuri confessed their love and died together shortly after.

Source: https://www.cbr.com/demon-slayer-saddest-hashira-fates-ranked/

Mitsuri also has an amusing and personal goal, wishing to finally meet and marry a man who is even stronger than she is.

Source: https://www.cbr.com/best-demon-slayer-characters-ranked/

The pair bounce off one another, and Mitsuri is the first of the Hashira who seems to have left a lasting impact on both Nezuko and Tanjiro.

Source: https://www.cbr.com/demon-slayer-mitsuri-nezuko-female-role-model/

The pink blade represents Love, which may seem kind of abstract when put together with the other blades, but it has an explanation: the Love Breathing has a peculiar nature, and it was developed by the pink Nichirin blade wielder herself, Mitsuri Kanroki.

Source: https://collider.com/demon-slayer-sword-colors-explained/

While this makes some sense in the case of Daki, who works as a prostitute, the show's obsession with showing off the body of Mitsuri Kanroji is fairly over-the-top.

Source: https://www.cbr.com/shonen-anime-over-the-top-fan-service/