Recommendations

Both movies were about the employee fight for justice, equality, responsibility
They were facing big corporation, many challenging,
True story

Both were about employee fight with the employer to seek equality, justice,
They fought to get the company to hold responsibility, to stop harassment, for future employmeng.

The revenge in both dramas is centered on the child's hidden identity. While both are orchestrated by a vengeful parent.

Both are Korean movies portrait a group of hard working women with difficult poor background were being mistreated, harassed, suppressed…..
They gather together, they found courage
Heartwarming, and very touching movie

Both are Korean movies about female employees facing gender discrimination, bias, suppression etc. they work hard facing mis justice, they group together fighting for what they deserve and what was right

Surrounded in police university/college setting. While Police University was focus more on mystery and action, Rookie Cops is like a lighthearted version of it. Same youth driven vibes and finding themself in the process.

Both are food related.
Both main male lead in other country learned the secret way of cooking tradition dish and secret recipe

The vibe and dialogue style (especially the subtle joke) are pretty similar. And of course the youth theme and main cast composition (3 girls and 1 boy) as well, although Alps Stand covers much smaller time frame.

Both are piano related movies.
I have not was neither yet, but they are on my list
Beautiful music. Classical piano

Piano related stories or movies.
Beautiful melody evolve around piano
The love of piano, the talent, piano never grow old

Piano related movies.
Beautiful music, piano playing, melody,
Music bind our hearts.
Piano, piano, piano

Both movies has old piano.
Both has romance and developed around piano and music
Short little cute story

Both movies are piano related.
Both movies you get to see piano from inside out.
The woodwork, the pieces, the sound….

Both Female Leads are in a quest of revenge and become serial killers after suffering a great abuse or injustice.

Both females leads's journey show the passage from innocence/ naïveté into an outraged realization of all the injustices of the world.

Both shows put different strangers under the same "roof" to try to match them up friendship vise and couples. Both shows also feature hosts who comments, makes jokes and talks about the show.

The difference is that Single's Inferno is on an island and Terrace House is in the city.