Jun Aiba is an Idol Dietwoman with the SOS Party.
Jun has slanted violet eyes and shoulder-length hair of crimson. She wears a single earring and wears purple nail polish.
She wears a purple top featuring red and white lines and a dinosaur skeleton design beneath a black hooded vest lined with studs and ribbon accents. Her skirt is a light purple diagonal cut, trim with black frills with a darker ruffled layer visible from the shorter side. She also wears black sleeves with purple ruffled fabric, along with purple and black sneakers, a stockings in alternate designs, one being solid black with purple ruffles and garter, while the other is purple and black striped. On her left wrist is a black and pink bracelet with a dinosaur skull charm.
- Her Blood type is A.
- Her birthday is April 29th.
- Her zodiac is Taurus.