Your Social Media post.
Which flavors used to create that specific Haze will directly affects which girl to be spawned.

The spawn rules:
1. Day 1 is locked into spawning ONLY Amu no matter what you post on Social Media.
2. Day 2 is locked into spawning Amu and Kokoro no matter what you post on Social Media.
3. From Day 3 onwards, the Social Media posts will affects who gets spawned.
4. At from around day 10 or later, depends on which ending you're going for, there may only be 1 girl spawning for that day and also renders you unable to do anything for the rest of the week.
5.
Amu love Dessert
Kokoro love Spice
Kurumi love Nuts
=> Generally if you want to guarantee any of them to spawn, double input their favorite flavor + another girl favorite flavor if you want double guest.




Example: Dessert + Dessert + Nuts => Amu and Kurumi will spawn


I've tested these multiple times but if you somehow get a different result, please let me know along with which Day (and which Ending if applicable) you got it on.

DO KEEP IN MIND THAT SOME FLAVOR ONLY SPAWN 1 GIRL FOR THAT DAY!
There are also some spawn combinations that'd make you go "this makes no sense".
The input order doesn't matter.

1. Fruity Blend (Fruit + Fruit + Fruit)
-> Amu + Kokoro
2. Applegum Blend (Fruit + Fruit + Dessert)
-> Amu + Kokoro
3. Summer's Arrival (Fruit + Fruit +Spice)
-> Kokoro + Amu
4. Lychee Tea (Fruit + Fruit + Beverage)
-> Amu + Kokoro
5. Tropical Nuts ((Fruit + Fruit + Nut)
-> Kurumi + Amu
6. Choco Banana (Fruit + Dessert + Dessert)
-> Amu
7. Jammy Cookies (Fruit + Dessert + Spice)
-> Amu + Kokoro
8. White Strawberry Latte (Fruit + Dessert + Beverage)
-> Amu + Kokoro
9. Apple Pie (Fruit + Dessert + Nut)
-> Amu + Kurumi
10. Carda-Mint Orange (Fruit + Spice + Spice)
-> Kokoro
11. Lychee Lemonade (Fruit + Spice + Beverage)
-> Kokoro + Amu
12. Extra Nut Coconut (Fruit + Spice + Nut)
-> Kurumi + Kokoro
13. Lemon Cola Blend (Fruit + Beverage + Beverage)
-> Kokoro + Amu
14. Cocoa Orange (Fruit + Beverage + Nut)
-> Kurumi
15. Berry Nutty (Fruit + Nut + Nut)
-> Kurumi
16. Devilishly 0 Calorie (Dessert + Dessert + Dessert)
-> Amu
17. Love Mint 13-1 (Dessert + Dessert + Spice)
-> Amu + Kokoro
18. Halloween Blend (Dessert + Dessert + Beverage)
-> Amu
19. Valentine Blend (Dessert + Dessert + Nut)
-> Amu + Kurumi
20. Lemon Cake Deluxe (Dessert + Spice + Spice)
-> Kokoro + Amu
21. Caramel Macchiato (Dessert + Spice + Beverage)
-> Kokoro + Amu
22. Pistachio (Dessert + Spice + Nut)
-> Kurumi + Amu
23. Spiced Muffin (Dessert + Beverage + Beverage)
-> Amu + Kokoro
24. Coffee and Cookies (Dessert + Beverage + Nut)
-> Kurumi + Amu
25. Caramelized Nuts (Dessert + Nut + Nut)
-> Kurumi + Amu
26. Fragrant Fantasia (Spice + Spice + Spice)
-> Kokoro
27. Jasmine Tea (Spice + Spice + Beverage)
-> Kokoro
28. Spiced Nuts (Spice + Spice + Nut)
-> Kokoro + Kurumi
29. Summer Party Blend (Spice + Beverage + Beverage)
-> Kokoro + Amu
30. Viennese Coffee (Spice + Beverage + Nut)
-> Kurumi + Kokoro
31. Rich Vanilla (Spice + Nut + Nut)
-> Kurumi + Kokoro
32. Royal Milk Tea (Beverage + Beverage + Beverage)
-> Kokoro + Amu
33. Matcha Cappuccino (Beverage + Beverage + Nut)
-> Kurumi + Kokoro
34. Almond Milk (Beverage + Nut + Nut)
-> Kurumi
35. Triple Nuts (Nut+ Nut + Nut)
-> Kurumi

(!!! Please skip this section if you don't want any spoilers!!!)

(Will still mark Spoiler for important things just in case ~A~)
(Also yet another Wall of Text incoming because I dunno how to extracts the CGs from the game file)

- Once you invite the same girl over a number of times, eventually the game will prompt an "Important choice" to you (It doesn't tell you that this is important). The choice itself is very straightforward: one will initiates the Good Ending route for that character, the other one initiates the Bad Ending route.
+ After initiating a Good End with anyone AND INVITE THEM OVER ONE MORE TIME, the game will not let you do anything with anyone else for the rest of the week, basically locking you into the good end route with that character. However, if you want to make a bit more use of the 14 days,you can choose the Bad End dialogue option with for example Amu FIRST before Day 14, then you can still choose the Good End dialogue option with another girl for example Kurumi AFTER exampled Amu. Useful if you goes on "Important choice"/Endings of 2 girls at once. Remember that you can achieve both a Bad End with one girl and a Good End with another in a single run.
- There is another type of Ending which isn't marked by Steam Achievement, but will unlock a CG
in the Replay Ending Menu which I will called "Acquaintance" Ending. This Ending CG is achieved by NOT initiating the "Important choice" for any of your choiced character(s) for that specific playthrough. But you can still nets other Good and Bad Ends along with this just like mentioned above. Remember that you HAVE TO reach anyone's either Good End or Bad End to get "Acquaintance" Ending for a DIFFERENT GIRL!

- Coal Change results does not matter.
- Replies in DM does not matter.
- What you serve each girl after they've been invited over does not matter.


"Important choice" dialogue:
=> Proceeds with the following options:

THEN INVITE AMU OVER ONE MORE TIME
Good End - Super Cute Manager #2 Achievement - Offering Smoke CG


THEN DO NOT INVITE AMU OVER ALONE IN ANY DAY FOR THE REST OF TIME
Bad End - Despair Achievement - Reckless CG

"Acquaintance" End - Connection CG:
Did not initiate the "Important choice" with Amu and achieved an ending with another girl.


"Important choice" dialogue:
=> Proceeds with the following options:

THEN INVITE KOKORO OVER ONE MORE TIME
Good End - My Only Family Achievement:


THEN DO NOT INVITE KOKORO OVER ALONE IN ANY DAY FOR THE REST OF TIME
Bad End - Loss Achievement - Loss CG

"Acquaintance" End - Nightless CG:
Did not initiate the "Important choice" with Kokoro and achieved an ending with another girl.

"Important choice" dialogue:
=> Proceeds with the following options:

THEN INVITE KURUMI OVER ONE MORE TIME
Good End - No. 1 Fan Achievement - Special Fan CG


THEN DO NOT INVITE KURUMI OVER ALONE IN ANY DAY FOR THE REST OF TIME
Bad End - Darkness Achievement -Inside CG

"Acquaintance" End - Nutty CG:
Did not initiate the "Important choice" with Kurumi and achieved an ending with another girl.

If you at any point accidentally invited a girl enough time to initiates their "Important choice" then pick their Good End option and forgot to invite them over one more time, have not locked into any ending, the game will initiates this choice at Day 15 (which is basically a hail mary):
+ The right option will basically be ignoring this choice, and you will get Closed Ending.
+ The left option will give you 5 more Days for this run. Let's say you have initiates Amu's "Important choice" and pick the Good End dialogue. During these 5 days, if you invite Amu over, her Good End will locked in. If you invite Kurumi or Kokoro, no matter how many times, their "Important choice" will never occurs. After these 5 days are over, you will get Closed Ending.


Abandoned CG:
Achieved by getting to an "Importance choice" with only 1 girl, pick her Bad End dialogue, then invite ONLY her any time before Day 14.


Loneliness Achievement - Closed the shop without going any route:
Was the main reason this section was born. Apparently it's very easy to get into a anyone's route so many people does not have this Achievement. How to acquire this:
The basics of this is that knowing how many time you need to invite a girl over to get to their "Important choice". I have already done the homework for you:
!!!Day 1 and Day 2 have fixed guests, so we DON'T count those. Only count invitations from Day 3 onwards.!!!

Amu:

"Important choice" appears on 6th Invitation.

Kokoro:

"Important choice" appears on 5th Invitation.

Kurumi:

"Important choice" appears on 5th Invitation.
You will want to spam SINGULAR invitations drinks (Inviting Amu, Kokoro or Kurumi BY THEMSELVES and no one else) for each girl LESS THAN when the "Important choice" appears and NO MORE. Which means invites Amu 5 times at most, Kokoro 4 times at most, Kurumi 4 times at most. If you invite them exactly like this, after Day 14 is done, Toru will closed down Hookah Haze and you get Loneliness.
Doing this will, at the same time, acquire:
Closed CG:
Achieved by not getting a Good End with any character in the run (End Day 14 without any Good End. Remember that once you pick the "Important choice" dialogue for a girl to go on their Good End, you have to invite them over one more time).

Happiness? Achievement:
This ending will automatically be initiated once you have achieved the Good End with all 3 girls (requires 3 different runs/ Save Load).After this, you will unlocked a new button on the Menu -True Ending. Which Leads straight to:
True Happiness Achievement:
The true recovery of Toru. Everyone is happy. The fabled 'Harem' ending of sorts. Also reveals Toru gender to be a guy which cause alot of people to be slightly unhappy.
You also unlocked 4 new songs (2 if excluding instrumentals) after this, which are the songs used in the PVs for this game!

Lots of Memories Achievement - OVER THE HAZE CG:
Complete all possible endings.