You're supposed to get 2 sacred hearts of Deviance when Aline turns deviant. It seems there's a bug though and some players don't get those hearts when they unlock the barrier of deviance in the Phantasm Menu.Seriously it was driving me insane trying to figure it out...and I still am. Amazing game though minus a few setbacks.
For people familiar with rpgm, unlocking the barrier of deviance triggers a common event giving two items (Hearts of deviance).
Those are required to go through barrier of Indecency and Barrier of Sexdoll.
If you don't have those hearts, please send me a save before trying to become deviant so I can check this and send you the new save with the required items.