Tadashii Kodomo no Tsukurikata!

In a bleak future, humanity stands on the brink of total annihilation at the hands of a catastrophic force known as the Virus of Death. As this apocalyptic destiny looms ever closer, desperate measures are taken to rewrite history and ensure the survival of the human race. To prevent this grim fate from coming to pass, an operative named Raito is entrusted with a critical assignment: he must travel back through time to alter the course of events before the world spirals into ruin. Raito’s mission centers on an entirely ordinary high school freshman named Tanaka Yuu. Despite his unremarkable life, Yuu holds the key to humanity's salvation. Raito is tasked with ensuring that Yuu successfully has children with his childhood friend, Takane Kyouko. What begins as a simple directive quickly becomes a complex endeavor, as Raito must navigate the everyday lives of these two teenagers and guide them toward a future together. The weight of the entire world rests on his ability to bring Yuu and Kyouko closer, transforming a mundane high school romance into the ultimate defense against extinction.