Hikaru, who unfortunately died in a traffic accident, was in line to receive a soul judgment in the heavens when he was unexpectedly offered the chance to have his soul transferred to another world. The ability he received was the 'Soul Board,' which allowed him to enhance skills by spending points and using a skill tree. However, the transfer came with a condition: he had to kill a specific person within an hour, or his soul would be erased. To meet this outrageous condition, Hikaru poured all his points into stealth-related skills. This is the story of a boy who specializes in stealth and wields his skill tree to exhibit unparalleled strength in another world.