很久以前，地球由两个种族均等统治着，分别为人类和魔物。一日，战鼓击碎了双方之间的和平；在人类近似屠杀式的侵略下，人类大获全胜。人类将魔物驱逐到地下世界，并由七位术士设下了相当强力的魔法结界，将魔物困在地下世界。人们可以在伊波特山（Mt. Ebott）进入下界，而须至少需要人类与魔物的灵魂各一个才可离开下界。在故事开始前，没有一个人类活着离开下界过，使伊波特山有登山者有去无回的传闻。魔物被困在地下世界中，由 Asgore Dreemurr 统治。魔物死亡后躯体会立即化为灰烬，不留下灵魂或尸体，只有其中一支被称为头目(Boss)的魔物亚种，其灵魂在死亡一段时间后才会粉碎消散。

About UNDERTALE Soundtrack :

If you are looking for an album to spruce your mood, play UNDERTALE Soundtrack online on Joox now! UNDERTALE Soundtrack by Toby Fox was released on 3 Jun 2016. Featuring popular artists, the album is an amazing composition with a total of 101 songs.

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