
The main points are
1. The culling game is to kill for the curse energy, the energy is to transform humans to sorcerer by (read #2)
2. Since tengen is partially a curse, he can be affected by curse manipulation technique, by manipulating him, humans can become sorcerers
3. Gojo can be freed by a curse user
Hope I'm correct
Oh gawd! Lewd yiyoung! Ahahaha