Finral Roulacase 「フィンラル・ルーラケイス Finraru Rūrakeisu」 is a nobleman of House Vaude and a member of Clover Kingdom's Black Bull squad of the Magic Knights. He is from Tota, a village within the Clover Kingdom.
Finral is a slender young man of average height and build. He has "droopy" eyes, and his dirty blond hair is somewhat unruly. After for the Royal Knights Selection Exam, Finral changes his hair's color and style, dying the tips green and combing it to the right. He generally has a pleasant, smiling expression.
Despite being nobility, his outfit is fairly simple. On top of a white under shirt, he wears a light green, loose-fitting tunic with long sleeves and long tails at the back. He also wears dark trousers and a green pair of wide, knee-high boots that lace up the front. He wears the short Black Bulls mantle and his grimoire holder is on his left hip.
He is extremely excitable, often reacting to situations in an exaggerated and comedic way. He is initially quite cowardly, always trying to avoid dangerous situations where he might be hurt or killed but is easily bribed into bravery when females are involved.
He is repeatedly frustrated when his comrades treat him poorly despite that he outranks them.
When he was younger, Finral was a far more earnest individual. But after being cast aside by his family for not showing the same aptitude for magic as his younger brother, Finral made a conscious decision to run away from reality and simply try to have fun.
He is a realist who accepts that he can never best his brother, but despite that, he has the newfound determination to try to make the Black Bulls the best squad by supporting them with his magic.
In Tota, Finral was born to House Vaude. A year later, his father has a second son with another woman. As the two boys grow up, Finral's magic and talents are overshadowed by Langris'. One day, Finral and Langris are introduced to Finesse, who is betrothed to the next head of House Vaude. In a discussion with her, Finral compliments her beauty but acknowledges his brother's superiority and likelihood to become the next head, which Finesse refutes, saying that Finral's kindness makes him the better Magic Knight.
Years later, Finral joins the Black Bull squad. After Langris joins the Golden Dawn squad and is promoted to vice-captain, Finral is told that he is no longer the family's heir. Freed from the responsibility, Finral runs from his family and squanders his time and abilities pursuing women and fun.
Finral accompanies Yami Sukehiro and other members of the Black Bull squad to the Magic Knights Entrance Exam. There, Asta runs into Yami, and Finral has to save him from the captain's wrath. During the exam, Finral stands behind Yami's seat. He is impressed with Sekke Bronzazza's level of magic and confused by Asta's attack.
Afterwards, because Asta cannot fly on a broom and has no magic, Finral opens a portal for him to the Black Bull's base. When Magna Swing challenges Asta, Finral watches with the rest of the Black Bull squad and is impressed that he does not have to save the rookie like usual. After Asta nullifies Noelle Silva's rampaging mana, Finral saves them from falling with his magic. Afterwards, Finral welcomes her to the squad and invites her to dinner.
After the battle in the Royal Capital, Asta returns to the Black Bull's base, and Finral appears and invites him on a triple date. To break the awkward silence on the date, Finral introduces himself and uses a portal to grab flowers from Mount Anahu. He then prompts Luck Voltia and Asta to introduce themselves and senses that the girls are losing interest. He offers to take Erica and show her a view. After the date, Finral is left in tears because Asta caused a fight and Erica thought the Black Bulls were trouble.
When Asta, Gauche Adlai, and Sister Theresa go after the kidnapped children, Noelle contacts headquarters, which sends for the closest squad, the Black Bulls. However, most of them are hungover, including Finral, whom Yami forces to accompany him. Finral opens a portal to the cave in time for Yami to save Asta from Licht's attack. Finral remarks on Licht's vast mana and rare magic before taking Gauche, Theresa, and the children to safety, at Asta's request. As Finral leaves, Yami tells him that he had better come back and then saves him from Licht's attack.
Back in Nairn, Finral watches as Theresa is healed. After receiving extra mana, Gauche orders Finral to take him back to the cave, despite being lower ranked. However, Finral suggests waiting for reinforcements and points out that those with large mana pools make it difficult for his magic to get close and that he has had to transport many people already, to which Gauche bows his head and asks politely. The two jump to the cave and Finral hardly recognizes it.
After Gauche reflects Licht's spell back at him, the Black Bulls celebrate their victory. Finral tries to take some credit, but Yami and Gauche refuse to acknowledge his help. As the Black Bulls prepare to take Licht, Finral is confused when three figures arrive, and panics when one suddenly appears in front of Yami. Licht introduces the Third Eye and points out that they are stronger than himself. Finral calls their bluff, so Liar displays the magic he copied from Yami. When the Third Eye attack the Black Bulls, Yami is forced to defend himself and his men. Waiting for his mana to recover, Finral cannot do anything but worry.
Jack the Ripper, Nozel Silva, and Charlotte Roselei save the Black Bulls and confront the Third Eye. Surprised to see them, Finral identifies and praises them, and criticizes Gauche for not recognizing them. While the three captains fight the Third Eye, Finral is left awestruck by the destructive power. Yami asks if Finral has recovered, and the young man takes this as an excuse to warp away from the battle. Yami, instead, has Finral open a portal above where Licht is recovering. The captain drops through and distracts Licht while Asta makes his way through the battle and ambushes Licht.
With the seal removed, Licht's mana begins to overflow, which causes Finral to panic. After the Third Eye seal Licht and retreat, Finral cries in relief. Yami then orders Finral to carry Asta home.
Some days later, Finral joins the other Black Bulls to a party on Raque's beach. He talks Grey into transforming into a fake twin so they can hit on girls. When Grey abandons the plan, Finral continues alone. Yami later appears and buries the squad in the sand before detailing their mission to the Seabed Temple.
A week later, Noelle's confidence wavers during her training. The other Black Bulls arrive to cheer her on, with Finral promising to catch her if she falls. Encouraged, she completes Cradle of the Sea Dragon and, in her excitement, loses her concentration, and the spell dissolves. As she falls, Finral tries to catch her, but Asta reaches her first.
The Black Bulls gather in Noelle's spell and head underwater. After passing through to the Grand Belt, Finral admires the seashells and considers gathering them as gifts for women. The Black Bulls enter the Seabed Temple and are directed to the High Priest Gifso, who tests them with a Monster Toy. Finral and Vanessa are impressed by the priest's magic. When Gifso challenges the Black Bulls to a game, Finral initially refuses but the priest offers women as a prize, so Finral accepts. Gifso then summons the other priests and uses his magic to scatter the competitors. After Gifso explains the rules, Finral plans to run and hide and let his squadmates handle the fighting.
While hiding from Gio, Finral finds he is blocked from warping outside, for which Gifso and Yami chastise him. When one of Gifso's Monster Toys swallows Finral, the Black Bull warps out of its mouth and keeps running. When Vetto and the White Night Eye crash into the temple, Finral panics while Yami warns his squad and Gifso alters the goal of the game.
Finral makes his way to Vetto's location, and when Vetto blasts a hole through the temple's walls, Finral is scared by that power and considers escaping through the hole. He overhears Asta's promise to take care of Vetto and thinks the boy is crazy given his physical state. Countering Vetto's discouragement, Asta declares that not giving up is his weapon and that he will not give up until he gets what he wants, which stun Finral. After Vanessa saves the fallen Black Bulls and priests, Vetto unleashes another magic blast, but Finral redirects it back at Vetto and joins his squadmates' side.
Finral and Vanessa help Asta fight Vetto. Finral returns Vetto's long-range attacks back at him and warps Asta around into close-range, allowing Asta to hit Vetto across the chin. As Vetto adjusts to their strategy, Vanessa and Finral reflect upon their pasts and, motivated by Asta's trust in them, amp up their speed. After Asta stabs Vetto, the Black Bulls think they have won, but Vetto grabs and crushes the boy's arms. To the shock of the others, Asta resolves to keep fighting, so Finral warps Asta to the Demon-Slayer Sword and the Black Bulls renew their attack. Weakened by the Demon-Dweller Sword, Vetto struggles to keep up.
After Asta takes down Vetto, Finral and Vanessa pull the boy into a crushing group hug. As the Black Bulls compliment each other, a self-destructive cloud of mana forms around Vetto, which Finral recognizes as the same as Licht's. The Black Bulls decide to keep fighting but are stopped by Yami, much to Finral's relief. Their captain thanks each of them before defeating Vetto himself. Afterwards they rush in and hug Yami, but he drives them off with his sword.
- Spatial Magic: Finral uses this rare form of magic to manipulate space. However, he has to see or to have seen where he wants to open a portal.
- Grimoire: Finral possesses a grimoire, which contains space-based spells that he could use during combat.
- Asta, Vanessa Enoteca, and Finral Roulacase vs. Vetto: Win
- Asta, Finral Roulacase, and Charmy Pappitson vs. Yargos: Win
- Asta, Vanessa Enoteca, Finral Roulacase, and Noelle Silva vs. Fana: Win
- Team E vs. Team F: Win
- Team E vs. Team G: Loss
- His favorite things are girls.
- Finral ranked fifteenth in the first popularity poll.
- Finral is the fourth smartest Black Bull.
- Finral's grimoire design is the background for Volume 13's cover.