Rokuta, a 17-year-old male with a tall, athletic frame (182 cm) and blood type O, stands out with pale orange hair, red eyes, and a constellation of tattoos, including concealed numerals on his neck. His wardrobe blends street flair and eccentricity: a cream jacket with a fur collar, white pants adorned with golden arrow motifs, triangular earrings, and a white choker. The Abstract Goat Finger Piercing on his left middle finger—a phantometal artifact—serves as both jewelry and tool, activating via a kiss to channel emotion-driven chemical reactions that conjure illusions during performances. Born October 10 and raised in an orphanage with Kei, later revealed as his biological brother, Rokuta displayed early musical aptitude by mastering piano at age eight. At ten, he and fellow orphan Itsuki were abducted by Alter Trigger, enduring experiments that infused his body with phantometal-enhanced strength at the cost of chronic physical strain and erased childhood memories. By thirteen, escalating trials wiped his remaining recollections, severing ties to Kei and his past. Freed at seventeen, Rokuta reunited with Kei and joined rap collective 1Nm8 under the alias "6"—a nod to his experimental designation. Daily life balances survival and routine: devouring karaage to offset metabolic demands, structured walks, gaming sessions, and piano practice. His buoyant, laid-back persona masks forgetfulness and clumsiness from experimental side effects, while poor strength control leads to accidental self-injury, requiring Kei’s aid for tasks like nail care. Relationships reflect fractured history: he addresses Itsuki as "Itsuki-nii," honoring shared trauma, yet avoids familial terms with Kei, haunted by amnesia-fueled guilt over his brother’s lingering remorse. Unintentional boundary-crossing defines his interactions, blending warmth with invasive physical proximity. Internal struggles surface through social media tags like #A_Past_That_I_Cant_Remember and #What_Is_Happiness, echoing existential voids and bodily fragility. Media narratives trace his quest for selfhood: manga and voice dramas tease latent memories beneath his carefully maintained cheerfulness, while spin-offs and stageplays position him within 1Nm8’s crusade against phantometal corruption. His anthem "Break Outta Here" crystallizes his yearning to escape his experimental chains, weaving liberation into both lyrics and life.