This is episode 75 of 80 of Three Sons Got My Back. Play it below, then continue straight into the next episode — the whole season is free and needs no account.
The closing stretch of the season, where the arc pays off.
Song Mingyue is humiliated by her family during her father's birthday, but her three accomplished sons stand by her. She meets Ming Chengjun, and they bond. When a villain kidnaps them both, they confess their love. Her sons rescue them, and the two live happily together.