Since the conclusion of the original series, Rin and Alice are leading happy lives. Their son, Ren, is a very normal boy. But one day, a man and a woman as beautiful as an angel appear in front of him and te...

About a sexless robot, Alan, who won't die, won't grow old, and of course will never be able to reproduce. But it has superior intelligence and physical power, and also can communicate with animals. Alan suf...