ZenNezu

ZenUko is the het ship between Zenitsu Agatsuma and Nezuko Kamado from the Demon Slayer fandom.

Canon
Before seeing her but knowing already that she was a demon, Zenitsu protected Nezuko from Inosuke because Tanjiro said that she was important to him.

When Zenitsu sees her for the first time and discovers that she's a cute girl, he quickly gets mad at Tanjiro because he thinks that Nezuko is actually his girlfriend instead of his sister. Later, when the misunderstanding is clarified, it is shown that Zenitsu quickly fell in love with Nezuko and tries to catch her attention by running after her or giving her flowers. He's shown to be deeply fond of her even on a short period of time, since on the Natagumo Mountain he refers to Nezuko as "the person he wants to protect" and she's his main motivation to run into the forest, claiming that Tanjiro is a moron for bringing a girl into the danger.

While he fights with his kasugaigarasu Ukogi he mentions that Nezuko is cuter than her.

On the Butterfly Estate, Zenitsu is shown talking with Nezuko when she's inside her box.

Zenitsu protects Nezuko by his own initiative for second time on the Demon Train Incident.



Quotes
"I will protect you, Nezuko-chan."

- Zenitsu to Nezuko before falling asleep.

Fanon
This ship is one of the most well-known inside the fandom because of Zenitsu's clear attraction toward Nezuko. A lot of people ships them and wants Nezuko to reciprocate his feelings once she became a human again, althought on the other hand some dislike it because they find Zenitsu a womanizer who only likes Nezuko for her appearance or by the simple fact that she's a girl.

On fanon they are portrayed on a similar way on canon, usually with Nezuko showing a better reply to Zenitsu's feelings or the later one being showing a more gentlemanly and mature attitude toward her.

Fandom
FAN FICTION