Ryuu Lion is a key character in DanMachi (Is It Wrong to Try to Pick Up Girls in a Dungeon?) and is known for her reserved nature and strong sense of justice.

A former adventurer from the Astraea Familia, Ryuu survived the tragic downfall of her group, leaving her with a deep desire for justice and a sense of guilt over her past. She now works as a waitress at the Hostess of Fertility, a popular tavern in Orario, where she is admired for her striking beauty and mysterious demeanor.

Though she no longer actively adventures, her combat skills in magic and swordsmanship remain sharp, and she occasionally steps back into action to protect those she cares about.

Appearance and Personality

Credits: Senran Kagura 

Ryuu Lion is a strikingly beautiful elf known for her graceful and elegant appearance. She has long, flowing blonde hair that cascades down her back, often worn loose or partially tied, and her piercing green eyes reflect both the wisdom and the pain she carries.

Her features are delicate and refined, embodying the timeless beauty typical of her elven heritage. Ryuu’s attire is usually simple yet functional, often consisting of a green tunic and cloak, which she wears during her work at the Hostess of Fertility.

Personality-wise, Ryuu is reserved and disciplined, shaped by the tragic events of her past. Despite her quiet and stoic demeanor, Ryuu is fiercely protective of those she cares about and will not hesitate to take up arms to defend them.

Powers and Abilities

Credits: NicePNG 

• Fairy Serenade - Ryuu can enhance the effects of her magic, with the power increasing significantly at night.
• Mind Load - This ability allows her to boost her strength stat when attacking by channeling her mind, which is activated under specific conditions.
• Aero Mana - Her attack power increases with her running speed. When activated, a blue flash borders her weapon, signaling the enhancement.
• Astrae Varmas - A passive skill that provides multiple buffs to anyone within a certain range, including herself. It amplifies skills, increases magic and mind stats, and grants medium resistance to mental attacks. The effect is stronger for members of her Familia and scales with her level.
• Abnormal Resistance - Grants her resistance to various abnormalities, including poison. At rank G, almost nothing, even the strongest poisons, can affect her.
• Mage - Enhances the power and range of her magic, makes mind usage more efficient, and creates a dark green magic circle under her when casting spells. This ability grants her a magic stat comparable to that of a Level 7 adventurer.
• Alf's Justitia - A green wooden sword made by Cecil, the Astraea Familia's blacksmith. Crafted from rare materials, this weapon can be imbued with her magic power, enhancing her attacks, especially when using Elven magic. 
• Kodachi Futaba - A pair of short swords originally belonging to Kaguya, which she kept after her death. 
• Spirit's Clothes of Justice - Battle attire designed for fighting mid-tier Spirits, offering great resistance against magic elements while emphasizing agility.

Trivia

• Ryuu is an elf, a race known for its long lifespan, wisdom, and strong connection to magic, which is reflected in her powerful abilities.
• Her signature green wooden sword, Alf's Justitia, is a masterpiece crafted from rare materials.
• Her combat style emphasizes speed and agility, making her one of the swiftest characters in the series.
• Although she works as a waitress at the Hostess of Fertility, she retains her warrior’s spirit and occasionally returns to the battlefield to seek justice.
• Her ability, Astrae Varmas, is named after the goddess Astraea, the deity of justice whom her former Familia served.
• She was once a member of the Astraea Familia, a group dedicated to justice, which was tragically destroyed, leaving her as one of the few survivors.