Yesterday Once More

Both movies are about Youth, friendship, young people falling in love and knowing themselves.

the story about romance, dream and friendship in their youth.

it'll take you back and reminiscing to your high school era.

The plot's like, 70% same. High school setting, falling in love with a classmate in senior year, being separated because one of the characters has family stuff to deal with. I'm not sure about this but I think Yesterday Once More had an open ending (I watched it 4 years ago so I don't remember much) while Love Untangled has a happy ending.

Same nostalgic feel. Embodiment of young and pure love.

Feel good movie.

them both are pretty similar.
the story told about old-vibes high school student with fluffy romance, strunggling for their youth age and someone they loved.
Both are presented in the form of a film

Hot Young Bloods probably will not make you think "ah, i miss my school days" like Yesterday Once More does, but it has the same idea exploring relationship between two young teens with different personalities.

both movie gave me the same feel, i actually found this after searching for a movie similar to our times.

Both main characters are goofy and cute
Both deals with school
Both has the goody-goody fall for the rebel

the mi qiao and ben ben plotline has a very strong yesterday once more ring to it...both similar in showing the challenges of determining your path and accepting the future