Having finished the game and seen both endings (I'm assuming there are two), I enjoyed it! The setting isn't often seen, at least in Western games, which lent it a different flavor and atmosphere; the puzzles and fetch quests, while simple, made it more interesting and the simplicity is understandable considering how quickly the game was put together. Naoji was surprisingly empathetic (how he reacts to Wada at the end of the last conversation and how he reacts to the antagonist) and was surprisingly funny when he was lampshading puzzle conventions, i.e. using the Shovel to complete two different tasks! I also found the antagonist unexpectedly sympathetic and prefer the ending where you don't deal with her.
While it was short and straightforward and a couple jokes felt a little obtrusive (the virus/coronavirus references, while topical, felt out-of-place in the setting), I had fun and would look forward to playing future games from you, especially if you decide to continue the adventures of Naoji and the MC and/or elaborate on how the latter wound up in that jail. Good job and thanks for the game!