Shinjiteita Nakamatachi ni Dungeon Okuchi de Korosarekaketa ga Gift “Mugen Gacha” de Level 9999 no Nakamatachi wo Te ni Irete Moto Party Member to Sekai ni Fukushuu & “Zamaa!” Shimasu! (I Was Almost Killed by My Beloved Comrades in a Dungeon, but Thanks to My Gift “Infinite Gacha” I Obtained Level 9999 Allies and Will Exact Revenge on My Former Party and the World!) is a dark fantasy revenge tale about Light, an adventurer betrayed and left to die by his own companions in the depths of a deadly dungeon. At the brink of death, he awakens his unique Gift, “Infinite Gacha,” a broken ability that allows him to summon overpowered allies, artifacts, and beings of unimaginable strength. With the loyalty of his newly summoned comrades and overwhelming power on his side, Light rises from despair to wage calculated revenge against those who betrayed him—while reshaping the fate of the world itself in a story filled with vengeance, survival, and cathartic “zamaa” justice.