No worries! Anything here on itch.io is pretty safe to download. I've been downloading any visual novels/games from here if they aren't available on the play store/app for like two years I guess.. And everything here do actually work so well. The moral of what I'm saying is yes, I assure you that it's pretty safe to download anything from here, not just this game. plus, if the website was actually uploading unsafe games and files, it would've been banned or deleted by now..
And oh! By the way, Welcome to itch.io! ^0^