Akane Shinjo (新条アカネ, Shinjou Akane), also known as Zegga (ゼッガー Zeggā) in her Monster form) is one of the main characters and alongside Alexis Kerib, she served as a central antagonist in SSSS.Gridman.
Akane appears to be a nice girl, offering Yuta a special dog when he forgets his lunch. However, behind that facade lies a mentally troubled individual with sociopathic tendencies, easily harboring petty grudges against anyone who wrongs her, even if it was an accident. In the first episode, the special dog she offered Yuta gets knocked to the floor because of a volleyball thrown by Sakiru Tonkawa. Akane retaliated by sending Ghoulghilas to kill Tonkawa while it wreaked havoc on the city. This malice even extended to her homeroom teacher, whom she nearly killed with Devadadan after he bumped into her without apologizing.
She is also shown to be extremely manipulative. She keeps up her kind and peaceful charade on a daily basis, only showing her true colors to those who knew beforehand, or figure out the truth for themselves. This plays into her manipulation tactics.
She also displays violent tendencies when she gets frustrated. For instance, she kicks her monitor, throws things, and shatters the screens of all her computers, phones, and tablets. Alexis Kerib even remarks on this, and calls her "violent."
As Zegga, Akane displayed feral and out-of-control behavior. This is because her human self is trapped within the core of her Monster form, tormented by memories of those she killed with her creations.
Appearance-wise, Akane's real-life self, as confirmed in the ending and the series' video theme song , greatly resembles Rikka albeit less assuming. She also wears a white scarf in addition of a school uniform.
Repli-compoid Avatar Form
Akane's repli-compoid avatar is a young girl who is easily recognizable by her pale pink, bob-styled short hair and reddish-pink eyes. She is normally seen wearing an outfit comprised of a white, button-up shirt, purple ribbon, dark purple jacket with pink trim and a black lining, a charcoal gray skirt, light gray leggings, and black shoes. She is usually barefoot at home, and wears pink glasses with a cracked right lens, along with a headset to communicate with Alexis Kerib.
During the field trip in the mountains, she wore a ruffled white bikini top that exposed her cleavage, along with a matching skirt-like bottom.
Throughout the series, she is noted to be very beautiful and to have a full figure by other classmates, especially Utsumi.
As Zegga, Akane assumed a tentacled Monster form encased in crude, spherical gray shell that break into several parts, revealing two pair of small claws (rear pair on the side of the tail and front pair on the front of the body), two pairs of barbed, clawed tentacles on the sides of her body that protrudes forward, a long tail, and multi-eyed skull which jaws can split into six parts. It also has what appeared to be a large human face and a pair of skeletal hands inside its maw, with Akane's human body trapped within.
Akane is stated to be a gifted young woman who, according to Sho, is skilful in many things.
- Repli-compoid Avatar: In Tsutsujidai, Akane appears through a Repli-compoid Avatar which appearance reflects that of perfect girl in her image and thus has impressive skills in her disposal, some may or may not carried over from her real-self in the real world.
- Righting Reflex: Akane's Repli-compoid avatar can land on her feet from great heights like a cat, which obviously involuntarily since it's part of the avatar's system.
- Age-changing: As shown in Hime and Samurai, Akane's Repli-compoid avatar can change its age to further her disguise.
- Artistic Skills: Akane is shown to be very adept at art, possibly carried over from real-world, and has no trouble sculpting the forms of Monster for Alexis to bring to life. These Monsters are extremely detailed in both design and aesthetics - akin to ones made by a professional modeller.
- Technology Acuity: Mirroring her predecessor Takeshi, Akane is remarkable when it comes about using and tinkering with technology. A testament of this was her use of a remote-controlled drone that may or may not built by herself. It's unclear whether this exclusive to her Repli-compoid Avatar, however.
Upon turned into a Monster, Akane, as Zegga, gains numerous abilities. Because Zegga form was bestowed by Alexis Kerib against her will in order to lure Anti out, however, Akane cannot control it, and only provide moderate challenge to Gridknight. Should Akane is forcibly removed from her body within its core, Zegga will die, though its body only destroyed after struck by Gridman's Fixer Beam.
- Durability: Akane's Monster form is encased in shells that resilient to damage.
- Sonic Scream: As Zegga, Akane's scream possesses enough concussive force to uproot and demolished several buildings in its path on ease.
- Electrical Blasts: At close range, Akane can unleash close-range bursts of electricity that strong enough to stagger Anti's Gridknight form.
- Akane's character is partly based on Takeshi Todo from live-action Gridman series as well as the latter's expy/successor in the scrapped show that later became the basis to SSSS.Gridman, Gridman F. In stark contrast of more introverted and unlucky Takeshi however, Akane managed to put up a friendly facade in front of everyone and is the ace of her class, further reinforcing her disguise.
- Another basis to Akane is a minor character whom shared her namesake from episode 16 of Ultraman Cosmos, Akane Tachibana. Like the former, this Akane was mentally troubled and manipulated by a cosmic entity who even helped her created a kaiju where in her case, Chaos Head. Not surprisingly, both shows had Keiichi Hasegawa as their writer.
- As with many other characters in SSSS.Gridman, Akane's design has minor references to Transformers franchise color. scheme-wise where in her case, matches that of Optimus Prime's Shattered Glass incarnation. In addition, the glasses she wears are cracked in its right side, just like one of the parts of Shattered Glass' Optimus Prime.
- Akane's voice actress, Reina Ueda, also voices Jasminka Antonenko from Little Witch Academia, another Trigger production.
- SSSS.GRIDMAN Episode 1 - Awakening
- SSSS.GRIDMAN Episode 2 - Restoration