Emilia is the main heroine of Re:Zero − Starting Life in Another World. She is a half-elf with long, hip-length silver hair, violet-blue eyes, and pointed ears. She stands 164 cm (5'4") tall and typically wears a white and purple outfit featuring a decorative flower hair ornament and knee-high boots. Chronologically over 100 years old, she spent a century frozen in the Elior Forest, leaving her with a physical and mental age in her late teens. Emilia is kind, gentle, and deeply selfless, often going out of her way to help others even when it inconveniences her. Because she physically resembles Satella, the infamous Witch of Envy, she faces widespread societal prejudice, fear, and ostracization. This isolation has made her self-conscious and hesitant to show vulnerability, though she possesses a resolute and determined spirit. As a candidate in the Royal Selection, she seeks to create an egalitarian kingdom that accepts all races.

Natsu Dragneel, the protagonist of Fairy Tail, is a lean, muscular mage known for his spiky pink hair and signature white, scale-patterned scarf. He has dark eyes and a prominent scar on the right side of his neck, typically wearing a sleeveless black waistcoat and white trousers. As a Fire Dragon Slayer, Natsu is fiercely loyal, carefree, and reckless. He fiercely protects his guild members, viewing them as family. Though he possesses an explosive temper and constantly picks fights with rivals like Gray Fullbuster, he has a deeply compassionate heart. His greatest weakness is severe motion sickness on any vehicle. Natsu tackles challenges head-on with boundless energy and a dense but sharp tactical mind in battle.

She is a young woman with brown eyes and shoulder-length blonde hair, which she frequently ties into a side ponytail with a signature blue hairband. Inheriting her mother's attractive features, she possesses a curvaceous figure and sports a pink Fairy Tail guild mark on the back of her right hand. She wears variable, stylish outfits featuring a belt that holds her Celestial Spirit keys and a whip. Lucy is independent, clever, and highly passionate about literature, secretly writing her own novel. Though she exhibits a superficial vanity regarding her looks, she is deeply empathetic, kind-hearted, and possesses sharp emotional intelligence. She fiercely protects her guildmates and treats her contracted Celestial Spirits as true partners and friends rather than tools.

He is a toned, muscular young man with spiky black hair, dark blue eyes, and a dark blue guild tattoo on his right chest. He has a forehead scar above his left eye and a cross-shaped scar on his lower abdomen. He wears a signature sword-like necklace. Due to his childhood training in the freezing cold, he has a notorious, comedic habit of unconsciously stripping off his clothes. Gray is generally laid-back, cautious, and analytical, balancing out the hot-headed Natsu Dragneel, with whom he shares a fierce but deeply caring rivalry. Though occasionally sarcastic, he is fiercely loyal to his comrades and possesses a deeply ingrained self-sacrificial nature, willing to risk his life to protect his guild.

Erza Scarlet is a young woman with long, scarlet hair, brown eyes, and an artificial right eye. Known as "Titania" or the Queen of the Fairies in the Fairy Tail guild, she has a slender, voluptuous figure and wears custom Heart Kreuz armor with a blue skirt, black boots, and diamond-shaped silver earrings. Strict, impatient, and fiercely justice-driven, she acts as the guild’s primary enforcer and team leader. Beneath her stern exterior lies deep loyalty, maternal warmth, and a secret love for strawberry cake, using her "Requip: The Knight" magic to summon various armors and weapons.

Wendy is a petite, slender young girl with long, dark blue hair (often tied in twin pigtails) and brown eyes. As a Dragon Slayer, she possesses distinctive elongated canines. She wears a variety of outfits, frequently featuring a characteristic green dress with yellow stripes. Exceptionally polite, kind, and empathetic, Wendy is a deeply caring person who hates fighting but will fiercely protect her friends. Though initially insecure and prone to crying, she grows into a brave, resilient, and confident wizard. She is also accompanied by her Exceed partner, Carla.

She is a slender, curvaceous teenage girl with azure blue hair, deep blue eyes, and pale skin. Her signature look includes a sapphire blue coat, a fur-trimmed navy shawl, a Russian Cossack hat, and her aqua guild mark on her left thigh. Originally introduced as a gloomy, isolated, and emotionless "Rain Woman" from the Phantom Lord guild, Juvia completely transforms after joining Fairy Tail. She evolves into a deeply loyal, polite, and bubbly companion. She is famously, obsessively in love with ice mage Gray Fullbuster, frequently referring to herself in the third person and fiercely viewing other women as "love rivals".