Jojolion is about making the villain the main character.
Head doctor is King Crimson.
Tooru is the corpse left behind in the wall eyes.
Tooru was original Josuke but he was already merged once when he met Kira, the third guy was being kept in the hospital until revived as the current Tooru.
In the end Josuke will merge with Tooru again and attain KCR, which was the goal of cultivating Rokakaka in the first place.
