As a long time JRPG fan. Trail series story wise, turn based combat, a very expanded cast and even side character is fully explore with backstory, deep story telling and yes is very engrossing. There a total of 11 up to date in JP
4+5 is getting translated eta 2022 and 10 is releasing in 2023.
The series is all inter-connected which make you have a deep feeling for the character. Don't be spooked when you spend bout 80-90 hours per game coz they too much to tell if you're still not playing it then just miss out on the top JRPG.