Doppelganger: From the Start, I Bit the Dog

Any Novels About Two Souls Sharing One Body? ♥

I'm looking for a story where the male and female leads meet, an accident happens, and one of them ends up living in the other's body as a soul, with their consciousness intact. One of them should be a genius, and later they should get a physical body. I read one like this, but it was too short. I really enjoyed it.

Dissociative Identity, with a Weak Main Personality and a Powerful Alternate Personality!

The Protagonist Has Multiple Personalities, Each One Possessing the Pinnacle Power of a Different World

The protagonist has dozens of split personalities, and every single one is a top powerhouse in a different world. Please, everyone, I’m begging you.

I Made Ruyan Hold Up the Wall, and Ruyan Went Wild for Me

Looking for books similar to I Made Ruyan Cling to the Wall, and Ruyan Went Wild for Me.

The Younger Sister Is the Primary Personality, and the Older Brother Is the Protector Personality

Please, I'm Begging for Novels with a Male Lead Who Has Dissociative Identity Disorder

I'm looking for books similar to "Don't Eavesdrop on What I Say, Your Majesty (Who's Talking Badly About Me?)".