Located west of Schradt, this plain was known in the literature of apothecary and herbalists as a bountiful resource for medicinal herbs. A statue of the featherfolk herbalist Mui stood in the middle of the plain. However, following the defeat of the Teras Pharma in HIY 100, Fang Rabbits would rampage through the fields, destroying the source of herbs.
This meant that following the destruction of Schradt by the Vermilion Axe in HIY 300, there was a paucity of herbs available to treat the wounded. The hero and Myra would bring Ducas and Ilia Barcai to the past using the Era Tree in hopes of finding a solution.
Teaming with Mui and Rolf Laug, the group defeated the fang rabbits that would have ruined Mui's attempts to repopulate the plain with herbs. Returning to the present, Lucille Plain was now covered in medicinal herbs which greatly helped in the efforts to treat the wounded at Schradt.
- Genso Suikoden Tsumugareshi Hyakunen no Toki The Complete Guide (ISBN 978-4-04-886462-6), page 46