Lyric Website with script 400 000 lyrics 14 year old domain with Adsense value 700 USD

Why are you selling this site?

We are stopping to do website, retire. We have 499 Domains for sales you can check Sedo, Dan and Godaddy for all our domains.
How is it monetized?
Adsense it have a script that works with the domain. Licensed bought 14 years ago.
Does this site come with any social media accounts?
Yes but not active
How much time does this site take to run?
Nothing it run by itself.
What challenges are there with running this site?
None WordPress ...