Toma Taiga, a male operative in the Tokyo Branch HxEros team, is known for his delicate, feminine appearance and gentle mannerisms. His shota/lolita-inspired aesthetic accentuates a youthful, androgynous charm, featuring dirty blond hair, light brown eyes, and a slight frame marked by gynecomastia-induced prominent nipples. His combat gear includes a choker reminiscent of a pet accessory and a belt-shaped HXEROS device used to launch H-Nel projectiles.

Shy and submissive, Toma frequently retreats under the dominance of bold female teammates, his discomfort magnified by societal pressures surrounding masculinity. He habitually shields his chest with towels during baths, flushes with embarrassment when his physical traits draw attention, and seeks validation from Retto Enjou—a peer he idolizes for effortlessly producing H-energy. Toma’s own energy-generation hinges on passively observing others’ intimate interactions, a slower, indirect method that strains his combat effectiveness.

Within the team, his narrative centers on navigating the tension between his inherent femininity and external masculine expectations, coupled with the tactical limitations of his observational energy-gathering approach.