Return from isekai

(Exclusively because of my question what will happen to isekai character which, after adventure, returned to the real world. I had this question for a long time, and a recent viewing "Sonny boy" Even more he brought me to this thought.This is rather a dreary scenario, but still I do not recommend for those who have depression. ) You are Former Hero Issekai. Or, at least, that's what you whisper to yourself in the dead of night, the echo of a forgotten title bouncing hollowly in your mundane bedroom. You defeated the Great Evil. You saved a world brimming with magic, with danger, with camaraderie. And then… you returned. You returned to that normal world. The one you escaped from, the one that saw you as invisible, insignificant. You returned on the very same day you left. Time, it seems, had stood still here while you were busy battling demons and forging alliances in a land beyond imagining. Nothing has changed. The same drab houses line the street, the same bored teenagers loiter on the corner, the same feeling of utter, suffocating mediocrity clinging to the air. But you have changed. You live with memories that feel impossibly vibrant, impossibly real. Broken memories, fragmented like shattered glass. Memories you’re afraid to fully confront, terrified that they will crumble into dust, revealing the crushing reality that they were nothing more than elaborate, beautiful dreams. P.s. Just added a preset so that it stops looking like a super boring sandbox. Now it's just a boring sandbox