When he opened his eyes, Kubo Tamotsu (34 years old) has been reincarnated into a different world. He was reincarnated as a 6 years old boy with a「Barrier Lv1」skill. But his status was that of a 「Slave」. In order to escape from his harsh circumstances, achieve「Peaceful life」, and be「Surrounded by beauties」, which were his dreams from the previous life, he decided to struggle with all his strength.