Hey so, this is how to farm hourglasses in Mystic Messenger. Basically, all you have to do, is to go on Casual story or Deep story. Then all you have to do is go through the prologue fast as you can to get the hourglasses. If you want to get some hearts, you can do the messages and the first chat as well like I did. The max hourglasses you can get from the prologue is 4 hourglasses. It’s hard to even get more than 2. But if you’re not patient enough, then try farming with more devices. I personally farm with 2 phones, which always makes a higher chance of getting more hourglasses, and even faster. Then there’s some other ways like going on the Christmas DLC! You can get a lot of hourglasses from there too! Also, try to compliment Zen as much as you can! Because Zen is mostly known for giving hourglasses when you compliment him, and I personally recommend doing his route and complimenting him a lot! You can also try to do some first chats! The chat that I mostly get hourglasses from, is the “Seven loves cats” (or something like that). It’s around 10:04 AM and ends at 11:49 (I think, sorry I do not remember). I also personally recommend joining in some events or after the server falling down! Cheritz mostly gives hourglasses! It’s the 4th anniversary, and Cheritz gave 30 hourglasses, free max speed, a deep story for free, lower the prices of DLC’s and the honey buddha chips rewards are doubled! But mostly, be patient! Then there’s also the easier buying the hourglasses. I personally bought only few times but spended all of them haha. You can also get hourglasses from the guests! You get 1 hourglass per one guest. All you have to do is go to the guests, click on any guest and click on the “RFA comment”. Hope this will help!
If you managed to invite them to the party on the final day. You will get their hourglass on other route by tapping the “RFA Comment”
One hourglass per guest, if you alreay received your hourglass from a guest, you wont be received anymore from that guest.