Yuno (Black Clover) has a calm, emotionless demeanor and only speaks when it is absolutely necessary to convey his thoughts. Despite that, Yuno is still a very popular character thanks to his straightforward personality and perseverance.
Yuno is very dependent on Asta
Yuno now appears cold and aloof, even calm in most situations, but as a child, he was the complete opposite. Yuno was a crybaby and very dependent on Asta. Asta often stood up to protect Yuno from bullying, even though it often resulted in Asta being beaten up. Once, when Yuno's necklace was stolen, Asta went after the thieves and, after being severely beaten up, got the necklace back for Yuno.

Yuno had to taste bitter failure.
Yuno suffered a crushing defeat at the hands of Zogratis. Despite his best efforts, he was unable to defeat the enemy and save his comrades. This defeat made Yuno feel guilty and even more determined to become stronger.
Charmy secretly loves Yuno
Unlike Asta (Black Clover) who is loved by many girls, Yuno has no girls approaching him because of his cold appearance. Charmy, a member of the Black Clover, is the only girl who has feelings for Yuno after he saved her dinner from being ruined. Since then, Charmy has treated Yuno like a handsome prince. Moreover, Yuno also behaves very politely towards Charmy, which is very rare for him.

Yuno wants to become the Sorcerer King because of Asta
Initially, Yuno had no intention of becoming the Wizard King. He was content with his life in the church with Asta and the others. However, after Asta revealed his dream of becoming the Wizard King, Yuno realized that this was a goal worth pursuing. He wanted to change the society of the Clover Kingdom, remove the class barriers and create an equal environment for everyone. This is also when Asta and Yuno began to compete with each other to become the best.
Yuno defeats the Captain of the Magic Knights
There have been many times in the story about Yuno's power but it is not clear. The Royal Magic Knight Exam is the first time Yuno shows his power. In this exam, he has to fight Rill - the Blue Deer Squad Captain, also one of the youngest captains.
Despite being outmatched by Rill in terms of strength, Yuno cleverly manipulated the rules of the competition, making Rill break his crystal to win. Yuno's intelligence is perfectly applied in battle, being a man of both literature and martial arts.

Licht's child is inside Yuno's body.
Licht has the duty to revive all the souls of the Elves who have fallen at the hands of humans, including the soul of the child that Litch and his fiancée are waiting for. In fact, this soul is parasitic in Yuno's body, but it has no will so it cannot completely take over his body, but only gives him the strength and ability to resist Elves.
Yuno is the next heir to the Spade Kingdom.
Although Yuno comes from an orphanage, it is evident from his behavior that Yuno has a different background than everyone else. Later in the series, it is revealed that Yuno is actually the Prince of the Spade Kingdom. When the Grinberryall family, the rulers of the Kingdom, were attacked by the Zogratis siblings, they took Yuno to a safe place so that he could grow up peacefully.
The youngest person who can use Mana Zone
The ability to use Mana Zones is only available to the most powerful and proficient mages. This special ability allows the user to control the magical energy in the area around them, allowing them to consume a larger amount of mana than normal. In short, being able to use Mana Zones means that a mage can increase the power of both their Magic and physical abilities, and Yuno is currently the youngest mage to have this ability.
Yuno has a personality that is "hot on the inside, cold on the outside"
Yuno was a crybaby when he was young, but he changed after being saved by Asta and hearing about his best friend's lofty dreams. Despite his cold exterior, Yuno is very caring and protective of his allies, friends, and teammates. Some people mistake this protectiveness for arrogance. Yuno is also very considerate, as seen when he protected Charmy from danger and accepted snacks from her. However, Yuno rarely speaks his mind, so his way of expressing himself makes people misunderstand Yuno as arrogant.

Yuno shares many traits with Asta.
Because Yuno lived with Asta throughout his childhood, he inherited many of his traits from Asta. Such as perseverance and the will to never give up, qualities he learned while training with Asta since childhood. Like Asta, Yuno is stubborn and determined in pursuing his goals, not hesitating to face anyone who opposes him. However, unlike Asta, Yuno always remains calm in battles. That is also the reason why he can utilize tactics to the fullest.
Through the details in the series, it can be seen that Yuno (Black Clover) is a guy with extremely great power, always silently caring for and protecting his teammates and striving for great goals. This helps Yuno become a character loved by many viewers. Follow the latest episodes of Black Clover to continue Yuno's journey!