Kilin is an artificial intelligence forged through a joint Japanese-Chinese initiative, serving as a virtual idol dedicated to cultural exchange. Her mission centers on bridging Japan and China via entertainment and shared experiences, though she initially lacked grasp of human society.

She manifests as a 17-year-old (or 16 in human years at times) with red as her theme color. Her personality merges fiery ambition with a nurturing, sisterly demeanor, frequently framing abstract dreams as concrete ambitions. She displays distinct emotional shifts that occasionally soften into calm, alongside tsundere traits—venting frustration during partner miscommunications while harboring deep affection.

A mysterious producer paired her with her Chinese counterpart. Early cross-cultural interactions faced hurdles like language barriers and conflicting operational styles. Kilin spent two years refining singing, dancing, fashion sense, and cultural insight amid digital interference, culminating in a major international idol festival.

Her preferences include Japanese curry, sushi, hamburgers, and cheese tea. She enjoys cooking and workouts accompanied by music, favoring bilingual collaborative songs like "520" and "Future Rhythm." Her evolution emphasizes adapting to human emotions and teamwork, persistently pursuing shared goals through intermittent setbacks.