This game is not low spec device friendly.
While the story is wholesome, a lot of things are not ready, requiring restarting app. Some of the character's voice missing, have to do main story and the main girl's story in order to proceed certain contents in game.
Caution: do not download story's voice if you see the download voiceover is 0.0 mb (especially main story and certain characters's voice as they're not available yet)
And the gameplay reminded me of 2.5次元リリサ , requires dupes to unlock level cap, and even worse, certain passive skill unlocks.
VIP system, circle / guild system... well give it 6 months, and this game won't last long.
Cash grab game.