Lagoon Engine is a manga by Yukiru Sugisaki. It was followed by Lagoon Engine Einsatz. The main protagonists are Yen and Jin Ragun. The name "Lagoon Engine" is derived from the phonetic pronunciation of the main characters' names. Volume 6 was released on December 1, 2009. Volume 7 was released in September2010 in the US.
Plot
Lagoon Engine revolves around two characters: 12-year-old Yen, and 11-year-old Jin. While Yen's intelligent, calm, and thinks tactically, Jin's hotheaded and rushes into battle. The Ragun family is dedicated to defeating ghosts, evil spirits, etc. - known as 'Maga' Yen and Jin just happen to the successors of the family, and they have to fight Maga too. In short: Yen and Jin are Gakushi. Both Yen and Jin have Maga - though not evil maga. Yen's Maga is called Koga, while Jin's maga is named Sora. Koga is good with gathering information, analyzing and remembering things, though he's extremely bad at attacking. Sora has no intellectual power whatsoever, but his attack power is very high.
Lagoon Engine Einsatz is a Japanese manga series written and illustrated by Yukiru Sugisaki that has appeared in Newtype USA since October 2004. In July 2005 an announcement was made that ADV Manga would be distributing the series as graphic novels starting November that year; one volume was released. It has been suggested that this series is related in some way to the manga series Lagoon Engine by the same author, but no official statement has been made by the author or publishers to support this idea.
Plot
Daisuke Kataoka writes of the series,
Characters
Sakis Snow Herzgil Lagoonaria - Sakis is a 13-year-old girl, a Scion, and Conductor of the Sky Knights. As a Lagoonarian, she is capable of choosing which gender she will become and like all Scions, she has the "flames of the gods" running in her veins. Sakis intends to become a male and take the role of King over Lagoonaria after her father.
Cloche Herzgil Lagoonaria - Cloche is Sakis' older sister. Her duty is to become a woman and pass the flames of the gods, the blood of the royal family of Lagoonaria, onto the next generation.
Zwau Herzgil Lagoonaria - Zwau, the father of Sakis and Cloche, is the dying king of Lagoonaria. He's been consumed by the flames of the gods that burn within all Scions. Although opposed to throwing his young daughter into such hardships, he will relinquish the throne to Sakis once she becomes a man. His death is only prolonged by the purifying waters that are constantly placed into his body.
Voyse Granc Leiberk - Voyse is an oracle and the foremost magic user on the continent. He is very knowledgeable due to his high levelof education and serves as a trainer and attendant to the Scion. He usually accompanies Sakis on outings, offering assistance and counsel as needed.
Izar Neele - Izar is commander of the Sky Knights. He joined when he was around 16 or 17 and advanced to his current position by the age of 20. He is somewhat unsociable but very impressive with a sword and is rumored to have instructed the young Sakis in swordplay.
Dosh Skeitner - Dosh is an airman and appears to be the oldest of the Sky Knights. He also seems to have known the commander the longest and is Izar's right-hand man.
Lugo Callias - Lugo is a helmsman and handles the ship's rudder with the skill of a top-class pilot. He is the newest member of the Sky Knights.
Zwan Hausen - Zwan is an airship navigator and rumored to come from one of the oldest and respected families in Lagoonaria.
Reitzog D. Quarz - As an assistant engineer, Reitzog is run ragged by the master engineer, he spends his days performing endless maintenance on the Skyships. It's said that he comes from an established family of airship technicians living outside of Lagoonaria.