Takuya Hirao leads a quiet life as a convenience store clerk, his social reticence contrasting with a deep fascination for cosplay and idol culture. This monotonous routine fractures when a cryptic package arrives, containing Seri—a shape-shifting android programmed to embody anime-inspired personas tailored to his fantasies. Their uneasy alliance thrusts him into a quest to unmask Nazuna Suzushiro, the enigmatic idol anchoring his aspirations.

Takuya’s passive demeanor defines his interactions, reacting to Seri’s ever-changing forms as they traverse whimsical escapades tied to his fixation on Nazuna. His history remains opaque, devoid of familial ties, past relationships, or explicit motives beyond idolatry. The narrative confines their journey to fleeting episodic encounters, prioritizing lighthearted clashes over emotional depth.

Seri functions as both catalyst and companion, her malleable identity amplifying the absurdity of Takuya’s mission without challenging his static nature. The unresolved conclusion halts their partnership abruptly, cementing Takuya’s arc within the narrow scope of Seri’s influence. No subsequent media expands upon their story beyond the original 2009 OVA framework.