Got off work early and was able to finish the game! I got the good ending. Honestly, I'm a little disappointed that the mystery wasn't explored in more detail, but I assume you all are making more games in the series that will expand on it.
I did run across one spot that was confusing to me. When Aku wakes up on the last day, there's a weird jump between waking up in bed and then waking up when they reach their destination. I saw your note that the web version is glitchy, so not sure if it just skipped some lines, or what, but I dug back through the history and couldn't find any sort of connection between the two... I should've taken a screen shot, but in case it's helpful it went something like (Aku wakes, starts pondering the vacation, realizes they need to check the rental car, * gets woken up as they arrive to the picnic). * = Where I got lost.
Definitely seems like you're doing a great job of sprinkling bread crumbs and lore throughout while developing the characters. I could definitely see this growing into a series that readers get really attached to! Oh, and one last note, that onde-onde looked amazing, wish I could get some around here!