Tadashii Kodomo no Tsukurikata!

Also known as: 正しいコドモの作り方！, Tadashii Kodomo no Tsukuri kata!, The Proper Way to Grow Perfect Children

by Marita Morita, Takayoshi Kuroda

The future where the Virus of Death shall destroy humanity awaits. In order for humans to avert that destiny, Raito is asked to travel back to the past. His mission: to make sure a normal high school freshman Tanaka Yuu makes children with his childhood friend Takane Kyouko! (Source: Shogakukan, translated)