The '2nd' in the title likely refers to the second version of the game, which I'm assuming is the updated release. If that's the case, then this rip is an excellent way to experience the improved music and sound effects.
: Look for files in FLAC format if you want the "best" quality, though gamerips are frequently distributed as high-bitrate MP3s (320kbps). Safety and Downloads When searching for the game or its music: download dokidoki little ooyasan 2nd gameripm best
Smoother animations and more detailed character sprites. The '2nd' in the title likely refers to
Ensure you meet the legal age requirements for adult-oriented content in your jurisdiction. Dokidoki Little Ooyasan (Video 2018) - IMDb Safety and Downloads When searching for the game
Sites like VGMdb (Video Game Music Database) are the gold standard for tracking both official releases and fan-made rips. Search there to see if a rip has been cataloged.