Kiki, the younger twin brother in the Little Twin Stars, was born December 24th on Omoiyari Star within the Dream Star-Cloud galaxy. His father is an inventor and his mother a poet. Kiki wears a star attached to his back by a ribbon, enabling him to fly and carry his sister Lala across the heavens.

He bursts with curiosity and a spirit of adventure, constantly exploring new places and planets. This inquisitive nature sometimes leads him into playful mischief, causing worry for Lala. Kiki especially loves spring and summer, drawn to bright yellow flower fields. His hobbies include star-fishing and inventing objects, reflecting his creative mind.

Despite being younger, Kiki shares a close bond with Lala and stands guard over his sister. When disagreements arise, they smooth them swiftly. Their journey to Earth began when their parents sent them to foster independence and growth, gifting them essential items like Kiki's flight star and a cloud for rest and travel.

Kiki and Lala befriend stars, clouds, angels, fairies, and all manner of cosmic creatures. Kiki naturally gravitates towards cosmic exploration and inventive pursuits during their adventures.