Either your connection is bad or your country doesn't allow this type of download. Try using a VPN.
Sorry for late notice man, i found it before reading your reply, yes my dumb COUNTRY not allowed download uh like adult game and stuff, i open this website from opera mini.
And i downloaded the data now by vpn.
Also if you finish all the first quest like uh the affection thingy what should i do? I think i accidentally break the game, because i have max affection for all the girl in the first like 3 days after tutorial section.
They have 100 affection and after spending couple more days there is no more quest and no more girls can be seen or whatever.