Both female leads are short and strong and never lose their interest in the male lead. They both provide a lot of funny moments, however in "All I want for love is you" its more focused on the romance part of the series. You also get to know the classmates and their relationships in both series.
School setting youth drama. Innocent (no kiss) light romance between leads. ML has an disability (prosthetic leg in FIT, heart condition in MD) which makes it hard for him to do some things his classmates do. FL is tough and quirky. Light, sweet, and feel good tone with a happy ending.
Both are very fluffy dramas that start with the FL obsessing over a cardboard cutout of the idol ML. One is fantasy and the other is not, but they have a similar feel.
FL Is crazy about ML
ML is popular and smart and treats FL as if he does not like her, although he knows and accepts her adoration
They live close to each other in both settings but keep it secret
Supporting character (SL) similar in actions and attitude.
Both are set in school and are a poor student FL paired who shares a desk with a good student ML.
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Both are a school setting with an initially antagonist relationship between the leads that eventually becomes friendship and then a gentle romance. Both have cute and perky FLs and cold outside but warm inside MLs.
Both of the couples are deskmates in school, the MLs are intelligent and a bit cold but quietly loves the FL. The FLs are a poorer student and helped out by the ML.