Mijissou no Last Boss-tachi ga Nakama ni Narimashita.  

The Unimplemented Overlords Have Joined the Party!, 未実装のラスボス達が仲間になりました。

In this scenario, a young player named Shuutarou has been selected to participate in the beta testing of Eternity, a virtual reality massively multiplayer online role-playing game (VRMMORPG). As soon as he begins playing, he activates his special skill for creating dungeons. However, just as he does so, the game experiences a glitch, trapping him and his fellow testers in the game. They find themselves in the unpatched area of the game, which happens to be the final-boss lair where six evil overlords reside. These overlords declare Shuutarou as their master, giving him access to their most powerful enemies. With this newfound strength, Shuutarou is ready for any challenges that come his way in this exciting new life.

Mijissou no Last Boss-tachi ga Nakama ni Narimashita. has been published in English by Yen Press under the Yen On imprint since February 20, 2024.