Clevatess

• Name — Clevatess: The King of Dark Beasts, the Baby, and the Undead Hero • Ja Kanji — クレバテス−魔獣の王と赤子と屍の勇者− • Ja Romaji — Kurebatesu: Majū no Ō to Akago to Shikabane no Yūsha • Genre — Dark fantasy

• Type — manga • Author — Yūji Iwahara • Publisher — * Line Digital Frontier • Media Factory • Magazine — * Line Manga • Comic Alive+ • (April 24, 2024 – present) • First — August 12, 2020 • Volumes — 13

• Type — tv series • Director — Kiyotaka Taguchi • Writer — Keigo Koyanagi • Music — Nobuaki Nobusawa • Studio — Lay-duce • Licensee — * Crunchyroll • Network — AT-X, Tokyo MX, SUN, KBS Kyoto, BS NTV, TUF, NBS, UTY, itv, IBC, Miyatere, MRO, TV Shizuoka, TSS, AAB, HTB, NKT, NIB, Mētele, BSN, RBC, RAB, Tulip TV, Fukui TV, TUY, KKB • First — July 2, 2025 • Episodes — 23

• Portal — yes Clevatess, full title Clevatess: The King of Dark Beasts, the Baby, and the Undead Hero, is a Japanese manga series written and illustrated by Yūji Iwahara. It began serialization on Line Digital Frontier's Line Manga service in August 2020 and is also serialized on Media Factory's Comic Alive+ website since April 2024. An anime television series adaptation produced by Lay-duce aired from July to September 2025. A second season premiered in July 2026.

After defeating a group of heroes and destroying an entire kingdom as revenge for attacking his lands, one of the Four Beast Kings, Clevatess, takes in a baby belonging to the kingdom's royal family. He resurrects and enslaves a hero, Alicia Glenfall, so she can help him take care of the baby while hoping to examine humanity more closely. Before long, they find themselves at war against Vorden, another one of the Four Beast Kings.

• Arishia Gurenfōru: • One of the thirteen heroes who is killed by Clevatess, but later revived to accompany him on a journey with Luna. She is technically an animated corpse who is bound to Clevatess by his dark magic, preventing her from disobeying him or being killed. She is later given the younger appearance of a Hidenian and uses the alias Alyssa Sleihunt during her time at Solsein. She is eventually turned into a mouse-like monster by Dean, but upon entering Vorden's domain, she returns to normal and reverts back into an adult and a human. • Kurebatesu Kuren: • One of the Four Beast Kings who rules the dark lands. He has grown interested in humanity after the heroes' failed attack. When adventuring, he disguises himself as "Klen", taking the appearance of a young boy (whose name is later revealed to be Shiro) who died while protecting Luna, though he is weaker in this form. His true form is a giant dark wolf with many tails. He is not all that ruthless as he has no interest in conquest, but will attack anyone who threatens him and his lands. He is currently the caretaker of Luna and master of Alicia and Nelluru, as well as Luna's magic instructor following Dorel's defeat. During his time at Solsein, he uses the alias Klen Vatiss. • Luna: • A baby who is the prince of the Haiden family, whom Clevatess, Alicia, and Nelluru take care of. Luna has a good influence on Klen as the baby’s presence is what keeps him from threatening humanity. It is later revealed that he is Toara's son and his real name is Toth. He is soon reunited with his mother. He soon develops the ability to speak and can use magical powers. • Nell / Nelluru • Celeste Perez • A slave of the Crows. Born in a shaft as a slave child, she was protected by her mother until the latter disappeared when the former was 12. Since then, the bandits have been treating her cruelly as a way to relieve stress, and she has been beaten so much that she can only hear on one side, and her face and teeth are ruined, making it difficult to speak. While she was pregnant three times, all of them were stillborn. Because she produces breast milk, she cares for the babies that have been kidnapped. She later joins Klen after he resurrected her using the corpse of Broco's pet troll Betty, who devoured Nell under Broco's orders, giving her super strength. She now takes care of Luna.

• The King of Hiden: • The unnamed ruler of Hiden, who is killed by Clevatess for launching an attack on his lands. He is later revived by Hiden's forge. After failing to convert Luna into the next heir using the forge, he drops himself into the forge as a final attempt to destroy Klen, which ends in failure. It is later revealed that Vorden was manipulating him. • Toara Mort Anzetta: • Luna's birth mother and the princess of Hiden. She becomes Hiden's new regent after Dorel is killed and upon reuniting with her son. • ファヴィオ・フライイープ: • A loyal Hidenian servant who works for Toara. • Sutefan: • One of the thirteen heroes who is murdered by Clevatess. He was considered to be the strongest and the leader of the group. • Miruro • Eric Wheeldon • One of the thirteen heroes who is murdered by Clevatess. • Horugasu: • One of the thirteen heroes who is murdered by Clevatess. • Kattsu: • One of the thirteen heroes who is murdered by Clevatess. • Mudo: • One of the thirteen heroes who is murdered by Clevatess. • Minark: • One of the thirteen heroes who is murdered by Clevatess. • Marugo Gurenfōru: • Alicia's father who was killed by Dorel when his daughter grew up. He and Dorel used to be partners. Alicia later avenges him. • Karuru • Mayumi Shintani • The owner of an inn. She is Pito and Phil's mother, and Mark's wife. • Mark: • Karl's husband, and Pito and Phil's father. • Pito and Phil • Karl and Mark's sons, who are distrustful of outsiders, but soon grow to respect Alicia.

• Borudein: • The oldest and strongest of the Four Dark Beast Kings, who has ulterior motives and an obsession for the Hero Legend, which he seeks to recreate so he can destroy Toah. He is hunting for the Books of Toah and manipulates the King of Hiden, Dorel, Dean, and several students from Solsein to do his dirty work. The other three Beast Kings are at war against him. Like Klen, he can take on a human form, though otherwise, he has the appearance of a giant red dragon with six eyes. • Zavthier • Megumi Han • Zavthier of Ghosts, or Zavthier of Mist is one of the Four Beast Kings, who opposes Vorden’s plans and works with Klen and Rathwell to stop him. She is an angel-like being with long blue-green hair, and uses Sarasa to communicate with others outside of her realm. She is the only Beast King that is female. • Rathwell • Tomokazu Sugita • One of the Four Beast Kings, who uses Edison's body as a vessel. He is a tiny, blue, insect-like parasite, who always controls bodies as vessels. He too opposes Vorden’s plans and works with Klen and Zavthier to stop him. He helped Edison improve his ability to manipulate coal. • Garuto: • A shapeshifting dark beast who serves Zavthier as a scout and spy.

• Doreru: • An antagonistic general who seeks to obtain arcanacites from the remains of Haiden for his kingdom Boelate. He is responsible for killing Alicia's father, whom he used to be partners with. He also possesses powerful magic and wields a Regalia sword. It is revealed that he is working for Vordin. He is soon killed by Alicia after she destroys his sword. • Maynard Swamm: • Drel's second-in-command. He can control an army of giant insects. He is eventually defeated by Alicia and was imprisoned for his crimes. • Naie Chiffonlits: • A wizard who serves Boelate. She can control magnetism and fly. She is later sent undercover as a teacher in Solsein. By this time, she is now terrified of Klen and Alicia. • Mirea Renault Allozar Wers: • The princess of Boelate. She is Beis's daughter. Dean, later revealed to be her alternate counterpart, swapped bodies with her and imprisoned her in the Mirror Labyrinth, though her original appearance remains the same while in the labyrinth. • Beisu Wāzu • Hōchū Ōtsuka • The emperor of Boelate. He is Mirea's father, but does not know of his daughter is really imprisoned and impersonated by Dean. • Jazuhaku • Akio Otsuka • A hulking warrior and "hero slayer" who was the original leader of the Crows, and is now a prisoner who works for Beis. He is later sent to infiltrate Solsein; he does not disguise himself as a teacher or student and instead keeps his distance until the right time.

• Roddo Royesu: • A general who is at war against Boelate. He can wield magic as well as fight. He is later sent undercover as a teacher in Solsein using the alias Matthew Barnes. • Mikeru Mendesu: • Rod's second-in-command. He also works undercover as a teacher at Solsein alongside Rod using the alias Teddy Swann. • Yurieru Esurieru • Reiji Kawashima • The young king of Eslinn. • Owen Koath • Tomoya Warabino • A sword saint who works for Uriel.

• Rei Rukerefuto: • A student who attends Solsein. He is calm in most situations and can use powerful magic. In the past, he became friends with Shiro. Once Ray learned of Shiro's death, he vowed to avenge him and kill Klen. • Mary Maryweather/Mary Mary: • A student who attends Solsein. She can use magic and combat skills. Like Ray, she is calm in most situations. • Andoryū Huwipu: • A student who attends Solsein. He is also capable of using magic, but is also addicted to Vorden's power. • Tigeru Buroeru: • A student who attends Solsein. He is Leon's brother and they both specialize in magic. He and Leon are also very arrogant and hot-tempered. • Leon Blouyer: • A student who attends Solsein. He is Tigel's brother and they both specialize in magic. He and Tigel are also very arrogant and hot-tempered. • Sarasa Reu Eira Raforuka: • A student who attends Solsein. She resembles a little girl. She is revealed to be Orggite Shamaness Godspeaker, the next heir of the Orggites and is both a follower and vessel of Zavtheir. • Edison Rukerefuto: • A student who attends Solsein. He is actually a human vessel for the Demon Lord Rathwell. He can manipulate coal, which is amplified by Rathwell's powers. • Dīn Karudinaru Eruro Romein: • The chairman of Solsein, who is also the leader of a cult that serves Vorden. He swapped bodies with Mirea before trapping her in the Mirror Labyrinth. However, it is discovered that he is really Mirea's alternate persona, who originated from the Mirror Labyrinth. • Rāngu Faisu • Akira Ishida • A magic instructor from Solsein. • Nasan Furānku • Risae Matsuda • A student who attends Solsein. After being transformed into a dark beast and returned to normal by Mary Mary, he leaves the school. • Megu • Arisa Seito • A student who attends Solsein. She can use fire magic. • Shiro • The boy who saved Luna and entrusted him to Klen before his death. Klen's human form resembles him. He and Ray knew each other in the past and became friends.

• Write • Tatsuomi Hamada • The original Hero of Toah millennia ago, who caused the downfall of the Toah civilization as retribution for all the heroes they summoned from other worlds to slay Dark Beasts and enslave people, and Vordin's friend. • Buroko • Shigeru Chiba • The ruthless leader of the Crows. He is killed by Alicia. • Karume: • A woman who works at the Crows' headquarters. • Betty • Haruna Himeno • Broco's pet troll. She is killed by Klen, who uses her corpse to revive Nelluru. • Dagan • Taiten Kusunoki • Dagan is a large and brutish member of the Crows. • Fleeto • A member of the Crows. He is blind, but has excellent hearing, touching, and smelling. He is killed by Alicia.

Written and illustrated by Yūji Iwahara, Clevatess started on the Line Manga digital platform on August 12, 2020, with the first collected tankōbon volume published on the same day; the thirteenth and latest volume was released digitally on July 8, 2026. The manga has also been published on Media Factory's Comic Alive+ website since April 24, 2024, as well as Webtoon since March 23, 2025. A new edition of compiled volumes started with the first and second volumes on July 5, 2024, followed by the third volume on August 28, then the fourth volume on September 28. In February 2026, Yen Press announced that they had licensed the series for English publication, with the first volume set to release in August later in the year.

An anime television series adaptation was announced on July 2, 2024. It is produced by Lay-duce and directed by Kiyotaka Taguchi, with Keigo Koyanagi writing series scripts, Souichirou Sako designing the characters, and Nobuaki Nobusawa composing the music. The series aired from July 2 to September 17, 2025, on AT-X and other networks. The opening theme song is "Ruler", performed by Mayu Maeshima, while the ending theme song is "Destiny", performed by Ellie Goulding. Crunchyroll is streaming the series. Medialink licensed the series in Southeast Asia and Oceania for streaming on Ani-One Asia's YouTube channel. After the airing of the final episode, a second season was announced, with the cast and staff reprising their roles. The season premiered on July 8, 2026. The opening theme song is "Foreshadow", performed by Maeshima, while the ending theme song is "Awake Anew", performed by Myth & Roid.