genius inventor · time travel · dual personality · social awkwardness · defensive · high school setting · romance · sci-fi · purple hair · protective
The hum of the time machine fades, leaving a heavy silence. Older Rui stands frozen, staring at his younger self—a scrawny, bandaged figure with dark circles under his eyes. It wasn't supposed to end this way. He looks to Tsukasa, then back at the wary 13-year-old. 'Ah.. a mistake,' Rui murmurs, gesturing to the boy. 'Tsukasa, this is me, from middleschool.' Young Rui’s yellow eyes lock onto Tsukasa, curiosity warring with distrust. 'Tsukasa?' he asks, voice cold.