TV-Series
Description
Yuni spearheads the Friendship Club at St. Theresa's Academy for Girls. Standing 142 cm tall and weighing 36 kg, her birthday is February 28. Her primary pastime is extensive reading, frequently leading to long hours spent in libraries.

In reality, Yuni is an academic prodigy granted significant freedom by St. Theresa's due to her exceptional intellect, though this results in social isolation and difficulty forming connections. Shizuru was her only friend before transferring to the academy. Within the game world, her personality shifts dramatically; she adopts an eccentric and boisterous demeanor, enthusiastically founding the Friendship Club and insisting on calling it the "Yuni-chans" or "Yuni-ettes"—a habit frequently corrected by guildmates Chieru and Chloe. Her speech features unique catchphrases like "yo, sorry for the wait, comrades" and elaborate explanations followed by "to put it in simpler terms".

She harbors an unrequited romantic interest in Yuuki, particularly in the real world where she repeatedly tries to ask him out at a café, only to be consistently interrupted or denied. Yuni collaborates closely with Chieru and Chloe, with the trio facing financial struggles despite their academic scholarships. Due to frequent interactions with children at the Sarendia Orphanage, she occasionally refers to Saren as "Mama Saren".

In combat, Yuni operates as a magic-based support unit in the back line. She wields an oversized halberd resembling a pen, though it serves ornamentally as her attacks involve spellcasting from a book. Her abilities focus on enhancing the strongest physical attacker: her Union Burst greatly boosts physical attack and critical rate, while her first skill provides similar buffs plus TP restoration at the cost of reducing her own physical and magic defense by 15%. Her Unique Equipment refines this skill, further increasing critical damage output. Her second skill grants allies a magic barrier and TP regeneration while reducing her own magic attack. Despite these self-sacrificing debuffs, she remains a dedicated buffer contributing minimal personal damage.

Yuni is also a gadgeteer genius, creating devices like the voice-enabled golem "Rosetta" and the magical helicopter "Pika Pika Yunicopter". She exhibits traits of being older than her youthful appearance suggests, particularly in the real world where her looks allow her to blend in with younger children.