My new clean playthrough i discover 3 things:
1) The source of Sophie 0 Hit Damage on enemies
2) Unlocking Elisa Wed, 1st Week
3) Ivanna unlocks Negative Energy Cells after Dark Dimension cutscene(Rose Black Dragoon Ref.)
1) In my playthrough Monday 2 I max Good Master, Speech, Strength using Breakfast loop so after the Ritual on Tuesday Sophie Stats(I save 3000Str for gym):
HP: 2000
MP: 1000
ATK: 200
E.ATK: 0 <- The source of her Normal ATK Damage getting 0, Sophie randomly use E.ATK stats in Normal Attacks
DEF: 270
When I fast click Normal Attack she kept using E.ATK stats instead of ATK(vice versa) the animation is still her running & slashing enemy she does over 3000 damage or 300, I never notice it until this playthrough.
Sophie New Stats:
HP:2000
MP:300
ATK: 300
E.ATK: 100
DEF: 300
2)At first day at school if you met Katerina, resume class, Student Council met Sasha, visit Library, talk to Sumy & Carol, visit the park, Teacher Lounge, Restricted Area, Cafeteria, School Gym, met Monica & Elena, Area 2- Janitor Room & Lucia. Last part MC has to quote that he tour the school before seeing the Director(Leave if Kyo is in Area2 then go see the Director to see the quote). Then Wednesday in Area 2 on the same week Elisa will appear.
3) After defeating Big Worm for the first time go to Rosa Blanca Palace on the next day after Sophie speech about getting Fame after class. (Car must have 80 Energy left). You will see Morgana cutscene when you exit the Palace you should have 40 Energy left now, check the Map go to Beach & Docks you should have under -40 Energy and Mary didn't show up to reset the Energy Cell in the car, now you don't need to buy another Energy Cell.