If you're still stuck on it, the Reunion ending is attainable after last having saw specific endings with Rina & Ace -- a hint for the endings required is that they are one of the more positive ones. As the bartender, you should also be making choices that urge Dawn towards reconciliation and change.
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Thanks so much for playing our game and sharing your thoughts, we really appreciate it. And of course we don't mind that you recorded a let's play of our game, it was fun to watch you play and see what choices you made!
Thank you so much, we're happy to hear that you enjoyed our game! Both of us are Chinese by ethnicity but not by nationality, so some research was done.
There is actually one truth throughout the whole game, but not all of it is revealed in a single route. Zheng isn't a very reliable narrator, and they definitely lie to the other characters on more than one occasion, so it's up to the player to sort of piece it all together.
The intent of this story was to focus on non-romantic relationships, so there is no proper "romance route" in the game -- though you're of course free to interpret the endings however you like!