Reikon's birth was at a beautiful night with a full moon, more than a decade after the fourth great ninja war in an era of peace. Conceived by a former advisor of the greatest kunoichi in history and an expert medical-nin in her own right, Reikon was greatly pampered by her mother; Shizune, who would personally tend to any small illness the boy went through, such as fever. As he grew older, Reikon became more and more exposed to others around him. However, he would almost always decline any invitation to play with his peers. As he reached the age of 7, he was enrolled into the academy, where he slowly flourished in skill, mantaining above-average skills, however, this skill was neglected due to the presence of more skilled prodigies.