Cailean: A Mugen Gacha Story

In this world, there are nine different races.

The Human, the Beastfolks, the Elves and their darker cousin, the dwarfs, the oni, the centaurs, the cambions, and the dragonets. These nine races shared the continent alongside with various monsters.

But that didn't matter to a young 18-year old man known as Cailean.

For three years, Cailean wandered the land with only his horse companion he called Red Duke of the Steppes (yeah really), taking mercenary contract for coins he needed to find information. Information regarding his missing adopted siblings.

Yume, his 12-year old little sister.

Else, his brother of the same age.

And finally Light, his 15-year old younger brother, who had left his home to join the Adventurer Guild.

All three of them disappeared after something attacked their village, while Cailean was away on a hunt alongside a friend of his. His parents and many villagers were dead, while many others had gone missing, taken without a doubt. And so Cailean, after having gone separate way with his friend, traveled the Human Kingdom in search for clues of his siblings, armed with his longsword and a gambeson that he had bought, along with an axe that he had it with him since he left the village.

And now, he had finally found a clue.

Three years ago, Light was recruited by a party of adventurers called "Concord of the Nine Races", and they were the last people who had seen him. If there's anyone who could give Cailean clue about Light's whereabouts (or grim fate if the fear is realized), it would be them. Luckily for him, one of the member of the Concord, an elf known as Sasha, had gone on an expedition to the Centaur Steppes to search for the Lost Tomb, more myth than historical.

With the help of an informant, Cailean had gone straight toward the tomb's supposed location...