1) Marice will appear in the tavern, but it requires Djemma
2) Hikari needs your life energy otherwise she will die, you can buy characteristics from a living tree.
3) I don't speak English very well either :D
I don't know if it can help you but at the start of the game,as i had already played the game before, i went directly to unlock necrona and later when the first time the curse appeared Baphomet did not appear to tell me how to fix this problem, i think that may be what caused the bug. Do you think i should start a new game or i can continue the story.