This Is Not the Second Personality of a Beautiful Girl

As a chosen reincarnation, everyone will awaken a piece of their genome before going deep into a world full of [strange], [mutated], [cutting] and [machines]. When the body achieves a qualitative leap, it is also accompanied by one or more genetic diseases that are extremely difficult to cure, such as deformity, blindness, deafness and mute, Down syndrome... However. When they entered the dungeon world for the first time, they unexpectedly discovered that their genetic disease seemed to be... A spirit body that looked exactly like themselves. Another self? Or is the second personality embodied? But I have to say, the other me is so strong! … … As reincarnations, they only need to say they are strong, but Fang Yin, as their [second personality], has much more to consider. Since he exists due to a genetic disease, he will naturally die due to his cure. But when everything settled and life returned to peace, those familiar figures that should not have appeared more and more frequently appeared in his life, and he was no longer calm...