King

King is a member of the Seven Deadly Sins and is known as the Grizzly's Sin of Sloth. His real name is Fairy King Harlequin for he protects the Fairy King's Forest and the rest of the Fairy Realm. His Sacred Treasure is the Spirit Spear Chastiefol, which he uses in conjunction with his inherent power, Disaster. King's fairy form resembles a young boy with short brown hair, a high forehead, thin eyebrows, and brownish-orange eyes. He wears a long orange and aqua sweatshirt with a hood and navy blue sleeves, quarter-length navy blue pants, and short boots with large buttons matching his hoodie. He also carries a green leopard pattern pillow which is actually a transformation of his spear Chastiefol. Despite being a fairy, he has no visible wings.

In his human form, he looks almost exactly like his wanted poster; large, fat and more ragged, perhaps hinting at how humans look to fairies. He wears an enlarged version of the clothes he wears as a fairy, though he can freely change the clothes he wears in this form. Ten years ago, he wore full-body light green armor with a helmet that fits the size of his human form. King's wanted poster depicts him as a big man with short hair, sideburns, a button nose, and a sneer. His Seven Deadly Sins Grizzly symbol is located just above his left ankle, on the outer side of his lower leg. After the Kingdom Infiltration arc, King added Helbram's Love Helm helmet attached on the hood of his jacket. After switching bodies with Drole and Gloxinia and going back in time, King wakes up with tiny wings sprouting on his back that resemble those of a fairy. In his first appearance, he is shown to be an ally to the Holy Knights and is willing to wipe out anyone who gets in his way along with the person he is after. Since he is the Sin of Sloth, he is shown as somewhat lazy, preferring to levitate in most occasions. In the past, he was shown to be a compassionate character who returned stuffed animals stolen by Ban to children. Furthermore, it appears that he is an emotional person who cries easily. King has trouble admitting his affection for Diane. Although he enjoys being with Meliodas and Diane, he could not bring himself to express it. He cares deeply for his sister, Elaine, as shown when he was willing to take revenge for her death by "killing" Ban. King is also shown to have a caring side. He helps the Seven Deadly Sins in their battle against the Holy knights, although he claims it is merely for Diane. Despite being the Sin of Sloth, he is hard working and serious at times. When King joins the group, he starts to act like the only rational one in the group, and questions his teammates' erratic and slightly insane actions, such as their nonchalance about losing their sacred treasures. When forced to do something he dislikes, King can easily be motivated if it will make Diane happy.Despite King's kind personality, he is not against killing someone, if pushed to his limits. King was willing to kill Guila and Jericho if they continued to attack him, but was unable to after Helbram saved the two.

As the current Fairy King and a member of the Seven Deadly Sins, King is very powerful. He is strong enough to overpower a Great Holy Knight single-handedly. Being a Fairy, King has demonstrated a number of abilities unique to his species; such as the ability to levitate or fly, the ability to change his appearance and clothes at will, as well as possessing great speed equal to Meliodas and Ban. Upon unleashing his true power, Meliodas and Ban commented that his strength grew to "an incredible level". This was later re-affirmed when he defeated Helbram, a Great Holy Knight level combatant, while protecting all the injured in the area; then almost immediately after, swiftly defeated Dreyfus, one of the Great Holy Knights of Liones, despite the injuries he sustained from his battle with Helbram. During his reign as the Fairy King, his power was said to be so great that it kept the human kingdom from invading the Fairy King's Forest. It should be noted that this included the Holy Knights of Liones. Despite his great power, King is physically weak, however, he makes up for his lack of strength with his sacred treasure, Spirit Spear Chastiefol and his immense level of magic power. In spite of his lack of physical strength, he has shown a remarkable level of durability as shown in his second battle with Helbram. It was believed that King was able to control the Sacred Tree a long time ago and with it draw out the true power of a fairy, but the tree abandoned King for an unknown reason. This was later proven to be false as the Sacred Tree has no evil intentions at all and it was King who did not want to fully utilize the Sacred Tree's powers. After going through the trial and his wings finally growing, King's power increased greatly, being able to freely access the true power of the Sacred Tree and his Sacred Treasure. Melascula states that his power became comparable to Gloxinia's. Gloxinia himself remarked that despite King's wings have only barely grown, he can wield his spirit spear on par with himself and thus would be capable surpassing the first Fairy King eventually and even becoming the most powerful Fairy King of all times.