Recommendations

A love so beautiful (ALSB) is simply an uplifting show! You can't help but smile.
It's a show with lots of couple time.
ALSB is funny, super sweet, cute, and simply adorable. The genius boy is still cold but supportive in his own way. A common characteristic amongst high IQ individuals is lower empathy... but in ALSB the main male lead has family reasons for not having a higher EQ.
There are so many remakes, adaptations, and versions of the original Itazura Na Kiss-- and I thought the Thai version was the best-- until I I saw ALSB now in Feb 2018. The Thai version is sweeter than the original (2/3 Japanese, 1 Korean, and 2 Taiwanese versions) but it still pretty much follows the original storyline.

Both are super sweet, cute, and simply adorable shows. Lots of couple time instead of draggy stories for side characters.
Both are simply uplifting shows. You can't help but smile with both shows!

Both series are funny with lead actresses playing sassy and feisty roles. Coincidentally, both lead male roles are germaphobes.

Both have quirky bosses falling in love with their subordinates. Both series are funny. Lead girl in SWDBS is "sweet" and kind of "feisty" in her own way. Lead actress in Fox's Summer is sassy and feisty.

Another story of two couples and one of them starts cheating which leads to their marriage falling apart.

These two dramas are identical in terms of plot - two couples and they cheat on each other. The dramas revolve around infidelity.

There are no two couples in "Ame ga Furu to Kimi wa Yasashii", but both dramas revolve around infidelity.

In both dramas there is an unhappy couple and the husband and wife cheat on each other. The dramas revolve around infidelity.

In both dramas there is an unhappy couple and the husband and wife cheat on each other. The dramas revolve around infidelity.

These two dramas are identical in terms of plot - two couples and they cheat on each other. The dramas revolve around infidelity.

The story is not similar but the theme does.
If you like drama related to the plane world with steewardess and pilot , you should watch this TVB drama. There's two season and one movie .

they both have the same story line and both of the series have the same concept of four boys and one girl

Almost identical plot .................................................................................................................................

Both dramas deal with the posh youth of Seoul.
Rich heir boy vs cinderella type girl and all the family drama all around.

These dramas are reminiscent of the Gossip Girl series.

It’s not similar to “The Advisors Alliance” except that it’s an historical setting. Reminds me a bit like “Game of Thrones.” You should try it.