Hi there! I just opened the demo and immediately had to come back because---wow your game is insanely beautiful!!! The use of Live2D is incredible, and the colorful art style seems to pop out of the screen! I'll leave more detailed feedback after I complete the demo, but I couldn't stop myself from gushing about just the first impression alone!
EDIT: Sweet, just finished the demo and boy are those animations incredible! I especially love how Riilai's portrait moves and changes from scene to scene. (I will say, however, that the writing is a little clunky/wordy and will probably want an editor at some point :P)