Toma’s obsession with Setsu led him to use a cursed necklace that promised power but drove him into insanity when Setsu chose to stay in Eclair rather than return to Japan with him.
The manga has been moving toward a definitive conclusion for Toma's arc. Here is what has been developing in this high-intensity phase of the story: Toma’s obsession with Setsu led him to use
Unlike a standard "zero to hero" story, Isekai Shoukan wa Nidome Desu focuses on a protagonist who already knows the world's secrets. This allows for a "speedrun" style of adventure where Setsu bypasses typical level-up tropes to confront deep-seated political and personal grievances. Toma’s obsession with Setsu led him to use