Likely an Original Soundtrack (OST) or OP/ED Single .

If you have already downloaded the file, run it through a service like VirusTotal .

Archives with .rar or .zip extensions from unofficial sources often carry malware or adware risks.

These files are typically hosted on piracy or "leech" sites. Downloading copyrighted material without authorization is a violation of intellectual property laws.

Use trusted software like 7-Zip or WinRAR to open the archive.

The opening theme "Hajimaru Welcome" and ending theme "Fine Days" were released around this period in 2022. ⚠️ Important Considerations