An android whose mission had been long completed finds a child abandoned in the ruins of a war-ravaged city. Amidst a dystopian world, a machine and human become mother and son.

An android that has long fulfilled its original mission and a child abandoned in the ruins of an old city. One comes across the other on rainy day, and a family is formed out of a machine and a human. As they grow older, their story begins to involve other unusual pairings...

"Katou Takuji created Mechanical Buddy Universe, which was a splash hit on X (formerly Twitter) before getting serialized. So, here's the rest of those social media hits in one big collection, each as viral as the last!(?) (Including) ""Her Regretful Days of Killing Time"" ""Magical Girl Akirara ☆"" ""Isekai Hero G-Shine"" ""The Tale of the E.L.F. Forest"" ""Girls That Get It"" ""Combat Support AI 'GAL'"" ""Puppet Ninja Kougetsu"" ""Suckers Death Game"" ""Poker-Face Junior"" ""Captain"" and more...! "