フォーランド大陸 移動要塞を駆使した大戦が何十年も続いている、戦乱の大陸… 自力移動する小型要塞一つが国家の全てという、小さな小さな王国［ママトト］。 大陸最速の移動力を誇り、他国の大型要塞から逃げ回って生き延びている。 この小国の軍事面を一手に任されているのが、かつては格闘王と呼ばれたカカロ国王の息子である将軍ナナス。 智将としてその名を他国に知られる若者である。 大陸の北東に広がるモンスター界。 そこに不思議な洞窟がある。 ［異空窟］と呼ばれているその内部は、文字通りの異世界。 「行き着く先には、きっと何か良い事があるに違いない。」 何の根拠もない希望だが、人々は勝手にそう決めつけ、疑う事もしない…。 その先にあるモノを知りたいと思い、軍隊を率いて突き進もうとした者も少なくはないが、 洞窟はその全てを飲み込み続けてきたのだ。 足を踏み入れたが最後、無事出てきた者はいないといわれているのだ…。 ママトトの王カカロも、［異空窟］へ挑戦したいと思い続けた一人である。 そして、その息子ナナスが父の思いを叶える事が出来るかもしれない発明に成功するところから、 この物語は始まる…。 ナナスが発明したのは、異世界から強者を召喚する事の出来る魔法装置。 カカロの前で、自信たっぷりの表情で装置を作動させるナナス。 現われた異世界の強者はなんと！！ …小柄な少女だった…。 Nanus, the prince of Mamatoto has created a machine that is able to summon heroes from other universes. With their help he intends to explore an infinitely deep cave. An SRPG game featuring a large cast from various Alice Soft and Alice Blue games

实际上，幸福制药公司第一研究室的主任乔瑟夫被发现曾经从女孩怪物保护组织·天使组织中绑架了名为温丽娜的圣女怪物。天使组织为了解救她展开了行动。兰斯与魔法少女琪萨拉组队，一起追寻天使组织的谜团。

This game is not considered part of the official Rance universe timeline, forking off after the events of Rance 4.2, as a "What if" episode. However, many characters and ideas featured in later Rance games originated in Kichikuou Rance. The game begins at the start of LP0003. The warrior Rance, accompanied as always by his faithful slave Sill Plain, has been living as the leader of a group of bandits in northern Helman after killing their previous leader as part of a job given to him by the Keith Guild. While Rance greatly enjoys the raping and pillaging that comes with being a bandit leader, the guilt-ridden Sill believes that he is in danger of losing what remains of his conscience and genuinely becoming a villain. After attacking the city of Golak, Rance's group alerts the attention of Ruberan Tser, commander of the Helman volunteer army, who launches a counterstrike on them during their second attempt at pillaging the city. Unable to fight against a genuine army, the bandits are quickly destroyed, Sill is captured by the Helman Army and Rance is forced to flee for his life. Rance evades the Helman army for several days, with both his equipment and health steadily declining all the while, before he finally passes out from fatigue along the Leazas/Helman border. He is found on the verge of death by Kentou Kanami, the personal ninja of Leazas' queen and Rance's longtime admirer Lia Parapara Leazas, who brings him to Leazas castle. After three days of recovery, Rance finally regains consciousness and, completely humiliated by his defeat at Helman's hands and desperate to rescue Sill, demands that Lia give him the Leazas Army to destroy the enemy nation. Finally seeing an opportunity to have Rance to herself, Lia agrees on the condition that he first marry her, which Rance reluctantly accepts. As the new king of Leazas, Rance sets his first steps on a path that will lead to either world domination or death. [Taken from the [url=https://web.archive.org/web/20230118041246/https://alicesoft.fandom.com/wiki/Kichikuou_Rance]AliceSoft Wikia[/url]]

这次作品的舞台是和平富裕的魔法大国ゼス，时间是《兰斯5D》的剧情之后不久。身为一国国王，却眷恋流浪的剑士生活，到处冒险（乱来）的兰斯，终于又跟多年来冒险剑士的厄运碰头了——没钱。为赚钱接下到魔法王国ゼス完成任务的兰斯，到了极度重视魔法，鄙视不会魔法者的ゼス王国，因不会魔法而遭迫害，他的奴隶シィル却因身为魔法使得到优待。被投入狱中，憋着一口恶气的兰斯，出狱后加入抵抗组织アイスフレーム，并开始着手颠覆ゼス的行动。但实际上，他只是借解放国民大名，对抓来的坏魔法使进行“体罚”，把成为伙伴的女孩子召集起来过酒池肉林的生活，极尽鬼畜之能事……