100-man-nen Chikyuu no Tabi: Bander Book

After terrorists destroy a spacecraft, a couple saves their infant son by launching him in an escape pod. He lands on a distant planet whose people can transform into animals with special rings, and the royal family raises him as Prince Bander without revealing his human origin.

Years later, pirates attack the kingdom and carry Bander to Earth, where forgotten memories connect him to a lost brother and a conflict stretching across an immense span of time. Discovering who he is becomes inseparable from protecting both the family that raised him and the world where his life began.