Yuno Grinberryall

Yuno Grinberryall is an orphan who was left under the care of a church in Hage after the downfall of House Grinberryall, the former royal family of the Spade Kingdom. He wields a four-leaf clover grimoire and is a Magic Knight of the Clover Kingdom's Golden Dawn and Royal Knights squads. He is later promoted to vice-captain of the Golden Dawn. Sylph, the spirit of wind, chooses to serve Yuno after he finds her scroll in a dungeon. He is also the human vessel for the reincarnated spirit of Licht and Tetia's son. As the rightful heir to the throne of the Spade Kingdom, Yuno possesses a tremendous amount of magic power, as shown when not a single anti-bird flies around him during the Magic Knights entrance exam. His large reserves allow him to cast two different spells at the same time with ease. He easily fights on par with two of the Diamond Kingdom's Eight Shining Generals and defeats one of them. His magic power increases greatly while being possessed by an elf. He develops his skills and power and achieves the rank of Stage Zero. Yuno possesses the ability to sense mana from his surroundings. In addition, he can see the flow of mana in the form of a flock of winged beings.

Yuno can control all the mana in the area around him to increase his spells' power and range. He often uses this ability to generate spells behind his opponents, catching them by surprise. By combining Mana Zone with his refinement of Mana Skin, Yuno merges with Sylph and a vast amount of mana, increasing his magic power and transforms himself. The increase in power allows him to match that of Rill, a Magic Knights Captain but loses to Zenon Zogartis, a Dark Triad, using 55% of his devil's power. With further training and Sylph's help, the transformation is more complete, and Yuno is able to overpower Zenon at 80% but is pushed back at 100%. Due to being the host of the human-elf hybrid, Yuno possesses two mana affinities: Wind Magic and Star Magic. Yuno possesses a four-leaf clover grimoire that contains various wind-based spells, which he receives in the acceptance ceremony after he turns 15 years old. His grimoire has a gold-colored cover, the gold-colored four-leaf clover insignia at the center of the front cover and intricate ornaments around the borders. Yuno also possesses a spade grimoire that contains various star-based spells. He receives this grimoire after crashing into a grimoire tower in the Spade Kingdom. Yuno possesses a small device that allows him to communicate with the members of his squad. It can only transmit audio. Yuno has a calm and emotionless demeanor and speaks only when he really needs to convey his thoughts. His manner of speaking often makes people misinterpret what he means. Despite his detached nature, Yuno harbors a strong ambition to be the Magic Emperor, which he developed while growing up with Asta. Additionally, Yuno has a sense of rivalry with him so strong that he will go to any length to stop anyone who tries to put Asta in harm's way. He also goes out of his way to make Asta look good in the eyes of others, even to the point of Asta's expense, such as when he attacked Asta with his most powerful magic, knowing Asta would block it. Yuno is also known to be very blunt and not hold back what he thinks. Because he spent most of his childhood living with Asta, Yuno possesses similar traits as he does. One is his tenacity and will to never give up, both of which he learned from training together with Asta in their early days. Also like Asta, Yuno has proven himself to be both very stubborn and passionate when he it comes to his goals, and is not afraid to stand his ground against anyone who stands against him. Unlike Asta however, Yuno is not so quick to lose his calm composure in battle, which sometimes leads to him showing a more quiet, yet intense nature of himself. In contrast with his current personality, Yuno used to be more of a crybaby who could not stand up for himself. He started to change after Asta saved him while showing his dream and determination. Also in contrast with his personality, Yuno has been shown to be surprisingly protective of the people he views as allies, friends and comrades. This protectiveness however has been misinterpreted by some as arrogance. Yuno has also shown himself to be very considerate and conventional at times, like when he protected Charmy from danger, then afterwards accepted her snack out of both nourishment and kindness.