Kasuga Masato is a working adult constantly buried in overtime. His only enjoyment in life was supporting VTubers. 'Ahh, if only my oshi would come out of the screen...' Masato indulges in fantasies of living with his oshi. He never imagined that fantasy would actually come true... Suddenly a cohabitation life with his three oshi begins. A romance that crosses dimensions with the VTubers who appeared in real life is about to start.