Forever and Ever

Both these dramas begin in the same way. The main male character falls in love with a simple girl, who is the heir to his business empire. Difference between rich and poor. The boy's family does not accept the girl. But the boy always stands with her.

Both dramas feature reincarnated lovers meeting again in modern day. In their past life in a historical era, both fell in love with each other but ended up with tragedy. Both couples are given chances to meet and fall in love again in the modern day current life.

In both series, the girl falls in love first, but the guy ends up falling even harder.
The love story develops slowly, with the man being cold and distant at first, while the woman does everything she can to get closer to him.
There are strong family intrigues in both series that try to keep the couple apart.
And in both, there's amazing chemistry between the main characters.

The female lead of Forever and Ever is a voice actress and the pace of both dramas are very similar. They’re both slow burns and lots of chemistry between the leads.

Both modern C-dramas feature a mature, mutually supportive and heartwarming relationship between the leads. They face potential misunderstandings and relationship challenges by trusting one another, rather than with tropey fights and breakups. The genres are somewhat different (Love o2o has more light silliness interspersed with the romance while Forever is more sedate and focused) but both will have you smiling throughout.

Both these dramas have the same feel. The story telling is similar with calm peaceful vibe with a calmer ML

This story is about Shi Yi, a gentle pleasant and low-key but industry's top voice actress, who ran into the elegant returnee chemistry professor Zhou Sheng Chen at the airport one day. They gradually develop a mutual understanding in getting along with each other, and join hands to preserve traditional craftsmanship and overcome many storms as they decide to accompany each other for the rest of their lives...

Both these contemporary dramas are sequels of period dramas.
The common point is that the main leads features in the dramas are reincarnations of the prequels.

The difference is that Forever and Ever is a full fleshed drama while Good Bye My Princess: Special is made up of snippets.

These dramas have the main characters being reincarnated from the past, meet in the next life. Their undying love and morale is beautifully written and directed. Finally, they'll probably remember their past lives.

I just like couple centred shows. This one is slow and couple centred. Although FE has outside angst but ML/FL never wavered.

Both are modern c-dramas which Bai Lu acts as female leads. Her characters are strong and elegant ladies. Both dramas have amazing on-screen chemistry between leads and excellent acting performances.

How ML & FL don’t let outer conflicts get in the way of their relationship + trust in each other.

SIMILARITIES
- Both FLs are talented and smart although they're not rich.
- Both ML s are born into chaebol or old money-rich families.
- MLs' families have traditions and beliefs others may find absurd/ hilarious in a way that'll hook you more.

DIFFERENCES
- FAE is a C-Drama, while HITTG is a K-Drama.
- FAE main couple has a healthier relationship than HITTG's young main couple.
- HITTG focused on parenthood, studies, and personal development, while FAE was more on flash romance where the ML warms up as the drama continues.
- HITTG has darker elements because it's satire, whereas FAE has a lighter and feel-good plot.

In both drama, both Female Lead remember their past life. But in Forever & Ever, the reincarnation part is very subtle due to censorship.

Both has Allen Ren as main lead. The Destiny of White Snake also has reincarnation/another life theme and great OST.