Thanks to everyone here and on Steam for your help in reporting bugs! I've updated the game to version 1.01 with some bug fixes and corrections. Here's the changelog:

• Fixed a graphical bug where Ying and May still appeared outside the inn after the introduction.
• Fixed a bug where fulfilling Sophie’s request and talking to her again would lead to infinite gold.
• Fixed a bug where reserving a room for Zara would cause the game to crash.
• Added a couple checks to prevent the situation where, on occasion, pressing the big red X in menus could cause the game to exit.
• Clarified that starting a new game plus from an NG+-enabled savefile carries over achievements from that savefile.
• Corrected some typos.
• SPOILER ALERT: Fixed a graphical bug where the wrong trophy appears when Paul wins second prize in the Chocolate Festival.

If you find any other bugs, please report them in this thread. Thanks!