- Birth Name: Kobayashi Ran (小林蘭)
- Nicknames: Ranchan (らんちゃん), Rantan (らんたん)
- Date of Birth: October 7, 2003
- Place of Birth: Osaka, Japan
- Blood Type: O
- Height: 151cm
- Bands / Groups:
- Currently a member of AKB48 Kenkyuusei. She was a candidate for the 3rd AKB48 Group Draft and was drafted by Team K in the fourth round.
- Her first choice as a draft member was AKB48.
- She likes to talk with other people and has long eyelashes, but she worries when buying thing.
- Her hobbies include human observation.
- Her special talent is rock dance.
- She admires Sashihara Rino and Matsuoka Hana.