Shinjiteita Nakama-tachi ni Dungeon Okuchi de Korosarekaketa ga Gift "Mugen Gacha" de Level 9999 no Nakama-tachi wo Te ni Irete Moto Party Member to Sekai ni Fukushuu & "Zamaa!" Shimasu!
Backstabbed in a Backwater Dungeon: My Trusted Companions Tried to Kill Me, But Thanks to the Gift of an Unlimited Gacha I Got LVL 9999 Friends and Am Out For Revenge on My Former Party Members and the World, 信じていた仲間達にダンジョン奥地で殺されかけたがギフト『無限ガチャ』でレベル9999の仲間達を手に入れて元パーティーメンバーと世界に復讐＆『ざまぁ！』します!, Backstabbed in a Backwater Dungeon: My Party Tried to Kill Me, But Thanks to an Infinite Gacha I Got LVL 9999 Friends and Am Out For Revenge, My Gift Lv9999 Unlimited Gacha, 信じていた仲間達にダンジョン奥地で殺されかけたがギフト『無限ガチャ』でレベル9999の仲間達を手に入れて元パーティーメンバーと世界に復讐＆『ざまぁ!』します!
The protagonist in this story is named Light. He's a human adventurer who belongs to the group known as the Legion of Races. However, humans are considered the weakest race in his world. When his companions leave him behind at the lowest levels of a dungeon, Light decides to use Infinite Gacha to create an army of powerful allies. With their help, he hopes to overcome the obstacles and seek revenge against both the Legion of Races and the entire world.
Shinjiteita Nakama-tachi ni Dungeon Okuchi de Korosarekaketa ga Gift "Mugen Gacha" de Level 9999 no Nakama-tachi wo Te ni Irete Moto Party Member to Sekai ni Fukushuu & "Zamaa!" Shimasu! began as a web novel on Shousetsuka ni Narou on April 17, 2020. The first official volume was published on May 19, 2021 by Hobby Japan under the HJ Novels label.The series has been published digitally in English as Backstabbed in a Backwater Dungeon: My Trusted Companions Tried to Kill Me, But Thanks to the Gift of an Unlimited Gacha I Got LVL 9999 Friends and Am Out For Revenge on My Former Party Members and the World by J-Novel Club since October 20, 2022.