Kotoko, a blue-haired alien subordinate serving under Layla, operates alongside companions Eriko and Rinko—distinguished by purple and green hair—within a covert team stationed at the same workplace as their targets, Ouji Tanaka and Layla. Tasked with recruiting Ouji and activating an interstellar weapon channeled through his guitar performances, the trio provides operational support for missions blending subterfuge with absurdity.

Prone to gullibility and cultural misunderstandings, Kotoko and her peers often base strategies on unreliable rumors or skewed interpretations of human behavior. This results in chaotic blunders, such as secretly administering sedatives to force Ouji and Layla into staged romantic scenarios, erroneously convinced such extremes are required to harness Ouji’s musical powers.

Their efforts to navigate human interactions highlight clumsy attempts to assimilate, prioritizing whimsical mischief over tactical precision despite their military-linked objectives. While their backgrounds, origins, and existence beyond the primary mission remain undisclosed, their legacy rests on a trail of comedic misadventures and earnest, if inept, dedication to their cause.