Futekisetsu ni mo Hodo ga Aru fit, I'm not sure about Until We Meet Again and Love and Redemption. I can't remember which descendants they met (dropped the former).
In FnmaHgA, ML met the son of his daughter's crush (one actor, two roles, can't remember whether they're dating or not). Thinking that maybe it's his grandson, he asked who's that man's mother and also have some talk with that man since he made a sensitive gen z new employee resigned and he need to apologise while he didn't know what he did wrong.
ML also met the bar and resto owner's ehm descendant (can't remember the gender), himself, and his own granddaughter and great grandson.