Both have different timelines: one has a magical mailbox and the other has a diary.

Both films have magical mailboxes, with different timelines and are about a love story.

Both films have magic mailboxes, even if the stories are different from each other.

Both films have magic mailboxes, even if the stories are different from each other.

Both are Taiwanese films and both deal with a queer relationship.
The films have the same vibes.

The two dramas have some things in common:
- they are both Boys Love;
- both dramas talk about music;
- the two protagonists have to overcome the death of a loved one.

Both films are about two people who have had a love relationship and who meet again after years. They have so many remorses and regrets about the past.

In both stories, both the film and the drama, the potragonist is blind. In both stories the potragonist has lost faith in love.

Both films are about the love story between two high school students. Both films address the topic of sexual harassment within an educational institution. In both films there is a sport.

both female protagonists find themselves acting as housekeepers in the house of an idol group!

In both the film and the drama the main protagonists are high school students. One of the two always sleeps in class. At first they hate each other, but then they get closer and end up living in the same class.

Both talk about the Great Tohoku Earthquake that hit Japan