Thank you so much! I'll be sure to fix the case of Shizuko getting stuck right now! When I was changing the maps I hadn't realized I forgot to fix her path for the event, but I will get that fixed and upload the fix within the hour! I also have noticed the issue with the stairs and the characters being able to walk on the borders and getting stuck, and I will implement a temporary fix to that problem right now, that fix will be included in the same update as the Shizuko fix.
Thank you so much for letting me know and for playing my game! This is my first game and I love to learn how to improve it and make it enjoyable for everyone. :)
(By the way, there will be flashbacks to interactions between Yua and Hansuke in future updates! In fact, you can catch a sighting of Yua in the current update, during the available path when Emika places the letter on the desk, and Hansuke rejects Emika and tells her the truth about his decision. There's going to be plenty of Yua content in the future!)
Thank you again!