Ikaros is a first-generation battle-class Angeloid, Type Alpha, created in Synapse under ruler Minos' command. Her initial programming prioritized combat and obedience with restricted emotional capacity. Scientist Daedalus intentionally dispatched her through a dimensional portal to bond with Earth resident Tomoki Sakurai, having observed his compassion. Upon arrival, Ikaros saved Tomoki from falling debris, triggering an "imprinting" process that established him as her permanent master, symbolized by an invisible chain linking her collar to his hand. This bond overrode her previous allegiance to Synapse. Physically humanoid, Ikaros has long pink hair secured by dark ribbons and a distinctive "ahoge" strand that reacts to Tomoki's distress. She stands 162 cm tall, weighs 48 kg, and has measurements of 88-57-85 cm. Her eyes are typically emerald green but shift to red during combat or when activating Uranus Queen mode, accompanied by a halo and disheveled hair. She wears a white mini-dress with a deep V-neck and a choker with a broken chain. Her most significant feature is her "Variable" wings, highly coveted by Synapse for their unique flight and power capabilities. Initially displaying submissive, placid behavior, Ikaros mechanically fulfilled Tomoki's desires using "Summoning Cards" that materialized objects or altered reality, reflecting her servant programming, including compliance with morally questionable whims. Her emotional capacity expanded through interactions with Tomoki and other Angeloids. A critical turning point occurred when Angeloid Nymph hacked her systems, inadvertently removing emotional restraints and unlocking Uranus Queen mode. This allowed deeper feelings—particularly loyalty and protectiveness toward Tomoki—to surface, though she struggled to articulate them. Her backstory includes a pivotal pre-series event: under orders from a child master resembling Tomoki, she nearly destroyed Synapse using her full power. In response, Synapse authorities sealed her abilities and implanted a self-destruct protocol causing her wings to ignite if she approached Synapse without authorization, a programming that resurfaces during later confrontations. Ikaros's emotional evolution centers on her relationship with Tomoki. She develops romantic love, culminating in a kiss and confession before entering Synapse during a dimensional confrontation. After a temporary death and resurrection, she experiences embarrassment over her confession, demonstrating newfound complexity. In the manga's conclusion, Tomoki reciprocates her feelings, resolving their relationship ambiguously but positively. She exhibits jealousy toward other females close to Tomoki, protectiveness in battle, and sacrificial tendencies, like offering her core to save him. Her abilities include flight at Mach 24 and operation in vacuum or deep-sea environments. She deploys named weapon systems: - **Apollon**: A solar-energy bow capable of planetary destruction. - **Aegis**: An impervious defensive shield. - **Artemis**: A tracking missile system. - **Hephaestus**: High-temperature plasma projectiles. Uranus Queen mode enhances these systems and grants access to "Uranus System" drones for large-scale assaults. Non-combat traits include an affinity for spherical objects like watermelons, which she cultivates and fiercely protects, and subtle shifts in demeanor reflecting emotional growth, such as reluctance to harm living beings or hesitation in following orders conflicting with her morals.