制横スクロール型タクティカルRPG。変な動物になってしまった主人公に代わり、可愛い女の子達を指揮してマップをクリアーしていく。 捕まえたモンスターの組み合わせで、あらゆるクラスチェンジが可能！ お気に入りの女の子をどんどん強くしていこう！

You (Nanasu) are the prince of Mamatoto. You go out and conquer other nations in order to conquer the world. There is stability/stalemate, so none of the nations can actually take over the world because if they start a war with another country, a third one might have an advantage. Mamatoto is different it has zero territory to worry about. The problem is, it doesn't have much of a population either. So you don't really have an army, thus for many years, Mamatoto, the moving fortress, has been hiding in the monster lands. You, Nanasu, who has studied magic really hard has recently invented magic to create these magical soldiers. These soldiers are made via cards which you can obtain via battles. So the more battles you fight, the more cards you collect, and the more troops you have in reserve. So now, Mamatoto, the fastest moving fortress in the world, started its move to conquer the world. Mamatoto's goal isn't to get territory - it's to take out governments. [From the [url=http://alicesoft.wikia.com/wiki/Mamatoto]AliceSoft Wiki[/url]]

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]]

アリスソフト引以自豪的看板游戏『ランス』系列又升上了新的舞台！ 引入从未出现过的quest攻略型的系统，能让你不去注意故事的展开也能享受游戏♪ 就像是MMORPG一样尽情玩乐！ 尽管故事是紧接着系列作前作『戦国ランス』，但本作的设计非常好玩，所以第一次接触『ランス』的玩家也无需担心。 为了夺取传闻中的美女“香姫”，ランス远渡大陆东端的岛国・JAPAN。 在旅途中他遇上了弱国・尾張的武将・織田信長，并代他指挥军队，踏上了征服JAPAN的全土与美女之道。 ランス接二连三地将上杉、武田、今川等强豪武将打倒，慢慢将JAPAN全土收归掌中，然而却在战斗的终盘失去了最重要的人…… 然后…… 回到大陆的ランス，现在自由都市地帯的コパ帝国。 与旅程中（伴随着以H为目的）偶然救下的学生・サチコ一起，过着每一天都东奔西走而去达成追求财宝的赏金猎人冒险生活！ 「シィル？ 嘎哈哈哈！ 那东西等日后再说！」 ランス与平时毫无变化（？）一直追着美女H。 就这样以H为目的去了某个カラー的村落的时候，他居然中了一个不能与女性H的诅咒！ 超高速兵器被封掉了的ランス的人生将会是怎样呢？ 但只要女性很强的话H是OK的！ 追求很强的美女与财宝的、ランス与美少女团队的冒险开始了！

大陆被拆分为人类与魔物分别居住的两大地区以来，已过去千余年。 这一天，魔物组成的庞大军团突然开始入侵人类界。 魔物界中的势力斗争持续已久，而魔人凯布利斯终于大权在握。魔物的矛头，就这样转向了人类。 然而，即使面对如此危机，人类国家间的矛盾却仍然未见消解，统一起来的魔军与人类之间的力量差距已是一目了然。 在一片混乱的首脑会议场上，看不下去的兰斯站了出来。 “你们所有人都来当老子的部下， 只要这样，区区魔军，凭老子就能打他们个屁滚尿流。” 会场自是一片哗然。但喧闹很快便重归平静。 那是因为…… 利萨斯王国女王：莉娅·帕拉帕拉·利萨斯、 塞斯王国副王：玛吉科·泽·甘地、 赫尔曼共和国总统：席拉·赫尔曼、 自由都市联盟代表：科潘彤·多铎、 东部岛国JAPAN国君：织田香、 世界最大宗教——AL教法王：库鲁库·莫夫斯。 这些各国家势力的首脑纷纷同意了兰斯的意见。 同时，这些首脑们，也是兰斯在此前的历险之中拯救世界危机，据为己有的女人们。 全人类在兰斯的麾下聚为了一体。 一场大战，即将开始。