A good attempt, but seems to be incomplete. I think you should continue to work on it though!
First thing, I noticed when you restart the game, the music plays over itself again. But the biggest issue really is the time restriction of 5 minutes... Figuring out how to stop the explosion, trying to figure out the puzzle on the chemistry sheet, the door code number, talking to all the characters, etc. in under 5 minutes isn't possible. I think you should also include some instructions and hints with your game too. Your game's itch.io page doesn't include this.
That said, I really like the character art, the inventory/clue system, and it seems like there's an interesting story and mystery to solve.