Ryouka Tachibana is a tall young woman with dark hair and piercing light green eyes in her civilian identity. When transformed into a Reflector, her hair shifts to vibrant blonde, and her combat attire blends stark red and black hues. Though outwardly composed and compassionate, she harbors an intensity that surfaces whenever her cherished friend, Amiru Sumeragi, faces peril—a loyalty that overrides all else.

Amiru’s condition, caused by the gradual loss of her Fragment—a crystallized manifestation of emotion—triggers debilitating fainting spells and a looming threat of permanent coma. To prevent this, Ryouka allies with Mizusaki Shino’s Red Reflectors, abandoning former comrades to master Fragment extraction. She believes controlling these entities offers Amiru’s only hope, even if it demands ruthless opposition to the Blue Reflectors.

Her signature weapon, a crimson sword, reconfigure into a lance fused with a tuning fork. This device unleashes targeted sonic vibrations to disorient adversaries across vast ranges and forcibly extract Fragments. Battles showcase her methodical approach, blending calculated strikes with strategic manipulation of soundwaves.

Ryouka’s narrative pivots on conflicting loyalties: her unwavering devotion to Amiru clashes with the ethical toll of endangering others. While branded an antagonist for aiding Shino, her choices lack ideological fervor—every action serves Amiru’s survival. This dichotomy paints her as a figure straddling sacrifice and moral compromise, driven by love yet haunted by consequences.