Past lovers who end up finding each other again after years, but the pain is still there.
both are about lovers who get separated due to harsh circumstances and meet each other yet life is not working in their favor.

Very romantic Leads with a cold ML and Kind and bubbly FL. both have elements of supernatural and heaven and hell in it. even the aesthetics are somehow similar.

Both have Cold MLs and Bubbly FLs who fall in love and go through various trials to be together. both are very romantic and so many romantic scenes, plus evil families and SMLs/SFLs

Both dramas are about young couples ( The MLs are a bit older than the FLs)
They are cute, fluffy, full of sweet scenes.
The stories are a bit different but both are feel-good dramas with so many romantic scenes.

feel-good dramas with young leads who depict young romance
The stories are a bit different but they both involve young people and their lives and conquest at finding love

Romantic Fantasy dramas where the leads have a long history and deal with a certain Curse
The Leads have met in a past life and there were consequences, so they meet again and fall in love

Fantasy romantic dramas where leads have a long history spanning through different dynasties

Cold and uninterested ML with bubbly and warm FLs

Both dramas are typical Noona romance-style
The leads are childhood friends and quite close.
In both dramas, the ML is the first one to realize she has feelings for the FL and starts pursuing her.
FLs in both have had unsuccessful relationships and find solace in the MLs.
very romantic and cute drams

childhood lovers who are not related by blood but grew up together.
Noona romance.
Both are about a career woman and a bubbly, playful ML who is head over heels for the FL.
Very sweet and romantic, minimum angst.

The leads are childhood friends
They have been friends for ages and are very close
as they grow older and they enter adulthood, they realize that they love each other.
both dramas are warm and fluffy with lots of good feelings

Both dramas are set during school days
the leads have close relationships as they grow up together and even their parents are close
the start to develop feelings when they got older

The leads are so similar in both dramas.
The FL is a bubbly carefree girl and the ML is smart and cold.
In ISWAK, the FL chases the ML, but in exclusive fairytale it's different.
both dramas are very romantic and fluffy