Zenitsu is a main character in the popular anime and manga series Demon Slayer. Initially portrayed as a cowardly and timid individual, Zenitsu is skilled in Thunder Breathing, a technique that he uses with electrifying speed and raw power. Despite his initial fears, Zenitsu possesses a strong sense of loyalty to the Demon Slayer Corps and a desire to prove himself. He is fiercely competitive, often bragging about his strengths, although this is typically met with skepticism from his peers. Zenitsu is known for his unique sleeping habits and his ability to enter a 'Thunderclap and Flash' mode under stress. Despite his lack of confidence, Zenitsu's character arc evolves as he grows braver and more capable, often surprising both the viewers and himself with his feats. He shares a complex relationship with fellow Demon Slayer Tanjiro Kamado, oscillating between reliance and rivalry. Zenitsu's jovial nature and his struggle with personal fears make him a fan-favorite character.

Nezuko Kamado is the younger sister of Tanjiro Kamado in the Demon Slayer anime series. Despite being turned into a demon, Nezuko retains her kind-hearted nature and a strong protective instinct towards her brother and friends. She is known for her fiery and combative skills in battle, complementing the wielded breathing techniques of the Demon Slayer Corps. Nezuko's personality is marked by a calm demeanor, and her favorite activity is to sleep. She has a distinctive appearance with short, spiky black hair and striking red eyes, which convey both her demonhood and her gentleness. Nezuko has a unique ability to shrink herself into a small childlike form. She shares a close bond with Tanjiro and their fellow demon slayers, particularly Zenitsu and Inosuke, and is often depicted wearing a bamboo chest guard for her protection. Despite her transformation, Nezuko is determined to resist the demon within and remain by Tanjiro's side to fight against Muzan Kibutsuji and the demons. She harbors a fear of fire, a consequence of her encounter with the Lower Rank Six, Rui.

Inosuke is a ferocious and untamed character in the popular anime Kimetsu no Yaiba (Demon Slayer). He is known for his eccentric personality and bare-chested fighting style adorned with animal-like markings, often imitating the behaviors of the boars he was raised alongside in the mountains. Inosuke harbors a hatred for demons and possesses a strong desire to surpass Tanjiro Kamado, whom he initially viewed as a rival. Despite his rough exterior, Inosuke harbors a soft spot for his mother and has a keen survival instinct that has kept him alive in his harsh upbringing. He has a tendency to speak bluntly, frequently clashing with others over his lack of social graces and manners. Inosuke's resilience and determination, coupled with his unique breathing technique, make him an invaluable member of the Demon Slayer Corps. His relationships, especially with Nezuko, have been key in shaping his character, sometimes showing a surprising side of loyalty and care.

Satoru Gojo is a powerful sorcerer in the anime and manga series Jujutsu Kaisen, known for his limitless abilities. Gojo is a charismatic and confident individual, exuding an aura of invincibility and nonchalant demeanor. Possessing a strong sense of justice, he is dedicated to protecting the weak and eradicating curses. His mastery of sorcery techniques, such as Infinity and Purple, showcases his unparalleled skills in battle. Gojo's teaching style is unconventional, often pushing his students to their limits to help them grow. Despite his cool exterior, he cares deeply for his students, especially his mentee, Yuji Itadori. Gojo's past includes a family history shrouded in secrets and a complex relationship with his students and fellow sorcerers.

Koyuki Azumaya is the protagonist of the anime series Restaurant to Another World, where he inherits his grandfather's old restaurant, Isekai Ichijō. Known for his culinary skills and dedication to his craft, he transforms the once struggling establishment into a culinary wonder that attracts otherworldly patrons. Koyuki is portrayed as a level-headed, kind-hearted, and respectful individual who enjoys experimenting with new recipes. He often finds himself in awe of the extraordinary creatures who dine at his restaurant, which leads to his growth as a chef and as a person. He maintains a healthy balance between the mundane world and the magical, occasionally getting assistance from his magical regulars, while also showcasing his ability to adapt to new challenges and friendships.