Recommendations

Both dramas have master - apprentice forbidden relationship .
In both dramas the female lead is an orphan or she's abandoned due to a massacre and male lead saves her and makes her his apprentice

Plays in university
two guys beeing enemies and falling in love after some time
beeing a Boys love Drama from Thailand

- Cross dressing sageuk
- Female lead pretends to be a male in order to survive
- Forced to pretend since child due to decision by other people

Infidelity. Inner struggle to stay in marriage and not happy or change for happiness. Sexual content. Seductive. Strong main lead with high profile career.

Time travel. Both strong male lead. Was a high rank profession at some point. Sweet cute, roller coaster journey.

Both main lead woke up in historical period. Living uneasily in the old fashion way at the beginning and starting to fall in love with people

Both lead woke up in historical period. Struggle with outdated knowledge snd equipment. Help snd teach the old fashion people. Sweet drama

Time travel current and historical period. Both strong main lead holding a high position. Trying to solve puzzle

Physical illness. Last wish. Physical handicap. Friendship. Heartwarming movie. Family and friends around. Dignity.

Both lead have unfortunate illness. Struggle to live. Dark inside. Struggle to survive. Live for the love one. Inteoverted.

Both involved high school students and the teacher. The teacher trying to find out something from the students. Well act and plot

Both main male lead were working for big cooperation, started in low level. Hard working, smart individual. Struggle to stay afloat in ugly business world

Both were working high level corporation. Both male lead stand for the truth, refused corruption, true to self. Brave and strong mind

Both dramas are centered around the friendship of group of seemingly very different women. They share their hardships and happy days, they fight and then they make up but most importantly, they always have each others' back.
Both dramas sometimes contain similar story tropes but as main leads are in different age groups, these tropes get solved somewhat differently.

Both dramas have quite short episodes (WLDN 30 minutes, AOY 45 minutes per episode)

Age of Youth is about 5 flatmates in their early 20s. The drama is about their everyday life, college struggles and first loves. Each main lead represents some basic stereotype (there is girly girl, innocent shy girl, sexy minx, serious hardworking girl, free-spirited girl). The drama is more slice-of-life centered.

Work Later, Drink now is about 3 friends in their early 30s who drink together every day. They are somewhat losers - one of them is pretty but very stupid, one of them is a bit of a weirdo, the last one falls in love with pitiful men when shes drunk. The drama is more focused on ridiculous comedy and it is more adult oriented.

- romance
- both explore multiple relationships
- all couples are connected in some way
- mellow (more than blue is more emotional)