Sou Akiyama

Sou Akiyama may appear laid-back on the surface, but beneath his easygoing exterior lies a young man capable of extraordinary resolve when it matters most. When his childhood friend Kaori falls into a coma following a tragic accident, Sou immerses himself in the worlds of quantum mechanics and medical research, determined to rewrite fate across repeating timelines. On the eve of the school festival, a chance encounter with the enigmatic girl Yui Furukawa sets him on an extraordinary journey through time and space in search of a future that was lost.