“Twinkling Watermelon” (반짝이는 워터멜론)

If you could go back in time and make your parents’ lives better, would you? Eun-gyeol (Ryeoun) doesn’t exactly make this choice. Rather, he’s mysteriously thrust into a bygone era where he meets his high school-age parents.

“D.P.” (디피): Season 2

What both seasons of “D.P.” does so well is tell the important and uncomfortable stories that no one wants to believe are true. When soldiers are regularly humiliated, degraded and tortured, what right does anyone have to tell the victims that they must return to their abusers?

“Weak Hero Class 1” (약한영웅 Class 1)

Park Ji-hoon is almost unrecognizable from his Wanna One days. Leading this cast, which also includes Choi Hyun-wook (Twenty Five Twenty One) and Hong Kyung (D.P.), Park is so intensely good as a bullied boy who uses classical conditioning (Pavlov’s Dog) and Newton’s Laws of Motions to fight back against his tormentors.

“Twenty-Five Twenty-One” (스물다섯 스물하나)

The burgeoning romance in “Twenty-Five Twenty-One” is based on a strong friendship. But some viewers have pointed out that the story would’ve been more effective if the female lead character hadn’t been underage when they met.

“Racket Boys” (라켓소년단)

“Racket Boys” is a sweet series centering around a teenager, who’s forced to quit baseball when his father moves them from Seoul to the countryside. Disappointed and bitter, Hae-Kang begrudgingly joins the badminton team — which his father coaches — on the condition that if the team wins a medal, his dad will get them Wi-Fi at their house.

“Taxi Driver” (모범택시)

“Taxi Driver” is a thrilling series in the vein of “The Equalizer,” “Profiler” and “The Pretender.” Rainbow Taxi Service driver by day and justice seeker by (mostly) night, Do-Gi and his team are funded by a philanthropist whose parents were murdered decades ago. The goal is to rehabilitate them, but what it all boils down to is revenge.