The best litrpg about a guy failing to get isekai’ed and playing tennis on Earth with superpowers I’ve ever read. Granted I’ve only read the one and if I read another and had a nickel for each I’d have 2 nickels, which isn’t a lot but it would be weird that it happened twice. The story and characters were interesting and I learned more about tennis than I ever wanted to without feeling like there were many info dumps.