A prequel manga that was gifted to filmgoers attending the movie <i>"Tensei Shitara Slime Datta Ken: Guren no Kizuna-hen"</i>.

A long-running conspiracy is swirling over a mysterious power known as “Queen” in Raja, a small country west of Tempest. When a slime who evolved into a Demon Lord named Rimuru Tempest crosses paths with Hiiro, a survivor of the Ogre race, an incredible adventure packed with new characters begins. The power of bonds will be put to the test!
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(Source: Crunchyroll)

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