1950s, 60s, now...ghosts.

That whole friction between studying and duty to family still exists.

https://www.indiewire.com/2020/04/my-brilliant-friend-season-2-episode-6-review-1202226045/

Plus 

https://www.indiewire.com/2020/04/my-brilliant-friend-season-2-episode-7-review-ghosts-spoilers-1202227722/

Finale 

https://www.indiewire.com/2020/05/my-brilliant-friend-season-2-finale-review-1202229148/