I'm glad you enjoyed this demo somewhat more than the last one, though I'm not sure which copy of the demo you'd played before - as the MC, you were always trying to get Melody to a place where she is okay without you. This demo has just added some scenes where Melody is chatting with her friends, and the MC interacting with her new crowd - though perhaps having those extra scenes 'dilute' the times the MC is controlling Melody and make it seem less gratuitous.
As for the weight-loss backstory story, I'm sorry to hear you have issues with it, though I do plan to go for different angle than it being 'a magical gateway to romance and happiness'.
I knew a lot of girls at high school (myself included) who did lose weight thinking it would be magic bullet to their problems - my mother's favourite phrase at the time was 'I just think you'd be happier if you lost weight' - and I wanted to explore that.
Melody's reasons she lost the weight are revealed in some of the routes and do not stem from her body image.
At the outset of the game, she is still shy, anxious and bullied. As the game progresses, I hope to show that it is not her physical transformation, but the loss of her best friend which is the impetus for her becoming a more confident person who realises her own self-worth is not related to others' perceptions of her.
Thanks for playing