O Amigo do Meu Irmão (2018)

Both are light, short, and incredibly fluffy little romance dramas. Both couples are in school and very nervous/innocent in every action. Each episode has a "hurdle" they must try to overcome to humorous results.

One is the short drama, the other the sequel movie.
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Both are about the younger FL falling in love with the slightly older ML who is her brother's best friend.

Both of them are awkward and innocent romance. Main leads are inexperienced in dating and are shy with each other. These dramas also have a café linked to the story.
Both dramas are also short and easy to follow and watch! I found the characters to be somehow similar as well.

Same type of nervous couple that are too bad with the opposite sex and have that "innocent personality" to expose their feelings like the Brother of the main character said. Trust me! exact same story and nervous atmosphere HANDS DOWN and it's AWESOMMMEEE lol!!! Jinx is just as good as this one but sadder. I wanted to say same type of shaky camerawork in emotional scenes to emphasize the Youthful romance of Japanese manga like Cinema???..... but Jinx has smoother camera panning but TRUST ME the same color palette during the romance scenes.