After a monster battle, he notices a diamond fall from the sky, but when he tries to pick it up, it disappears. Marche then speculates that the rain may have something to do with the Crystals. The Aisenfield is also linked with a pair of legendary heroes, Gaol and Lini. As such, some of the missions that take place there are related to the adventures of these heroes. These include "Mission #033: Battle in Aisen" and "Mission #080: Earth Sigil". Aisenfield can be freed in "Mission 245: Aisenfield" after "Mission #009: Magic Wood" is completed.