Hello, I'm at Your Service

In both shows the leads are socially awkward outcasts. They also idolize their popular love interest.

Miles Wei in both drama's
both rom com genre
similar normal clumsy warm female lead + smart/cold to others lead trope
lots of sweet and fluffy scenes
bingeable
side character relationships

Both dramas have the same actor and actress paired as the main couple, so if you enjoyed their chemistry in one, you will enjoy it in the other.