In the not-so-a ways destiny the polar ice caps have melted and the resulting upward push of the ocean waters has drowned all the coastal cities of the sector. Withdrawn to the interior of the continents, the human race maintains advancing, accomplishing the point of making practical robots (called mechas) to serve them. One of the mecha-producing groups builds David, an artificial kid that is the primary to have actual feelings, specifically a in no way-ending love for his "mother", Monica. Monica is the lady who followed him rather for her real son, who stays in cryo-stasis, laid low with an incurable disease. David is living fortuitously with Monica and her husband, however whilst their real son returns home after a therapy is discovered, his life adjustments dramatically.