First Man

Same FL (Ham Eunjung) and the drama is fast paced once the revenge actually starts. It does start a little quicker than The First Man, probably because the drama itself is shorter. The FL is pretty active in her revenge ... a little similar to Seorin in the sense that she moves in silence.

Another daily revenge drama ... FL of both get revenge by living as someone else, although Jeongwon does a bit more with her new identity than Jangmi does (WAY more) and Jeongwon acts on her own. A bit unorthodox in the sense that the FL isn't all sunshine and rainbows (like Seorin) but in my opinion that's a good thing ... the FL is calculating and ambitious. Which I actually like in an FL. If you want a break from the "bright personality" FLs I highly recommend this...
The ML also supports the FL although unlike The First Man, the ML is aware that he is being used and is okay with it. A love triangle exists but it's nowhere as one sided as the one in the First Man...

Also recommend if you can handle a drama where the majority of the characters are morally grey and not black and white good vs evil.

WWSTS has a super dumb FL, unable to self reflect, and winning only by sheer luck.

First Man FL is also dumb from ep 1 to ep 88, and then gets WORSE - she becomes evil and destroys innocent ppl, like A Graceful Liar FL - when I finally dropped First Man in ep 88, the trashy drama, going downhill

What I call a "twin swap revenge drama". In Wife Returns, the poor, good twin disappears and the rich, cold-hearted twin takes her place for revenge. In this drama, it's the opposite, both events happen because of the villainous 2nd female lead.

They both belong to the "revenge melodrama" (or makjang) genre. The protagonist’s transformation from victim to "avenger." First Man is a 2025 release and Cinderella Game debuted in late 2024, they share several specific narrative pillars:
1The "Fake Daughter" and Stolen Identity Trope,
2.Revenge as the Driving Force,
3. Cruel Matriarchs and Corrupt Corporations,
4. Shared "Makjang" Elements
Both shows deliver high-octane revenge, stolen identities, and jaw-dropping plot twists where a "fake daughter" infiltrates a corrupt billionaire family to burn their empire to the ground.

If you liked the chaotic energy and "trust no one" atmosphere of The Penthouse, First Man is its spiritual successor. It swaps the opera world for the corporate/political world but keeps the same high-stakes revenge. They share a gripping narrative formula:

The "Fake Daughter" & Stolen Identity Trope

The "Victim to Avenger" Character Arc

Cruel Matriarchs & Corrupt Corporations

Shared "Makjang" Elements (Birth secrets, twin/sibling mysteries, and extreme revenge)

They have the same writer, both dailies are centered around the hospitality industry (the third marriage = restaurant, the first man = hotel + restaurant) and Yoon Sunwoo (Baekho) ALSO plays the ML here. Big difference is he has his own secret revenge arc going that's separate from the FLs... Choi Jiyeon (Youngja) is also in this drama, although her character is extremely unlikeable here lol. The FL Dajeong is a little similar to Jangmi at the beginning although she actually pulls her "revenge marriage" off (and story wise it actually makes sense). You'll see a lot of the same tropes used in both dramas as both are part of Seo Hyunjoo's unofficial "Nth Series", along with The Second Husband.
Personally I liked Seran as a villain, just like Hwayoung there's no limit for as far she will go (and boy does Seran go pretty far) and just like Hwayoung she tends to get the upper hand...

Also Ban Hyojung is a legend, period.

Another daily drama that features long lost identical twins ... and one twin taking the identity of the other to get revenge on the main villain, who is also an older woman trying to stay in good graces with the "chairman", and is at odds with his (younger) wife similar to Sanwol and Hwayoung. The circumstances are a little different but I don't want to spoil the entire drama!
Highly recommend because Lee Yuri plays the twins and she's AMAZING at these revenge dramas imo.