Reina Stol is a heroic member of the Cronos Clan, but she was not born on the planet Cronos. She came to the planet as a child with his family in a ship piloted by her father. She is the youngest child in her family, with his older brothers Gardi and Rom. She was trained by her father Master Kirai Stol in Tenku Chushin Ken martial arts. Because of her mechanoid nature Reina Stol does not need to breath oxygen and is resistant to cold, but is vulnerable to intense magnetic fields. She sometimes uses a Power Riser suit.
Machine Robo: Revenge of Cronos
Reina Stol was one of the main characters in the animated series Machine Robo: Revenge of Cronos. She first appeared in episode 1, "Rising Storm! The Fighting Style of Justice!". Rom Stol lead his friends and fellow martial arts students Rod Drill and Blue Jet in rescuing Reina Stol and Triple Jim from Devil Satan 6.
In episode 2, "Wolf Sword! Call Forth the Thunder of Courage!" Reina and friends attended the funeral of her father, where Rom took on a quest to follow the Wolf Sword's directions to find the next threat to Cronos. This quest would lead the companions to Sado fortress with the Wolf Crest which attacked by Grujious and the Devil Satan 6. Rom and friends were captured by the Gandora when the people of the fortress betrayed them, but once it was clear the Gandora were still a threat, the people of the fortress helped free the companions. Rom used Vikung-Fu to defeat Devil Satan 6 once again.
In episode 3 "Steal the Metal Laster!", Rom Stol and his friends were traveling when Rod Drill fell into an acid swamp, which caused him to rust. The group traveled to the nearby village of Vira in an attempt to get water to clean Rod. The village was attacked by the Devil Satan 6, who were looking for the Metal Laster for Gades, which was rumored to cure rust and aging. Rom battled the 6, but they got away with a jug which they thought contained the Metal Laster. Luckily the jug contained acid from the swamp. Rod was cured of his rust by the real Metal Laster, and they made a friends with the people of the village, particularly Min, the daughter of the village chief. 
Reina appeared in episode 27, "The Magic Mountain Knight Maskrock". In the episode a Yamilan City volunteer group lead by Rom Stol that went to retrieve the cure for Gandora rust poison gas which has effected Reina and some school children.
In episode 35, "The Secret of the Jewel People", Rubyman was trapped in Devil's Cave and sent Magnarock for help. Devilrock and Doublerock pursued Magnarock until Rom and Pro Truck Racer intervened. Magnarock returned with Reina, Pro Truck Racer, Rod Drill, Rom and Jim, who freed him. Outside the cave they were confronted by Gandora forces lead by Diondora. She promised not to harm the other if Rubyman went with her. Although Rubyman agreed to go for the sake of the others, Blue Jet arrived with reinforcements and helped them overcome the Gandora.
Reina was one of the characters in episode 37, "Critical Moment - Land Commander 5". Reina found the injured Min, who warned her about the possessed Harley Robo. Reina interrupted him as he tried to steal the Phoenix Armor but he was able to knock her out. Grujious possessed Reina and tried to walk out of the base with the Phoenix Armor and the Dragon Helmet. Jim tried to restrain her despite Grujious electrocuting him. Rom arrived and tried to help Jim with the possessed Reina. Grujious left her, taking the Armor and Helmet with him. Rom was able to knock the Helmet clear with the Wolf Sword but Rockdon attacked him before he can try again.
In episode 41, "Power Riser - Break Through the Enemy" when Rom attempts to leave in his Power Riser suit to take on the Gandora he is joined by many of his allies, including Bike Robo, Blue Jet, Kenpo Robo, Reina, Rod Drill and Jim.
Machine Robo: Battle Hackers
- Megahouse Excellent Model Reina Stol (2006)
- Bandai Soul of Chogokin GX-39 Baikanfu (2010)
- Comes with Rom and Reina Stol as well as the Blade Dragon and Vikung-Fu armors.
- CM`s Corporation Gutto kuru Figure Collection 41 Leina Stol (2011)
- Come with a helmet and wolf sword.
- "Rising Storm! The Fighting Style of Justice!". Machine Robo: Revenge of Cronos. July 3, 1986. No. 1, season 1.