O Mentiroso e o Seu Amor (2013)

The Korean version is the remake of the Japanese movie. Therefore, they have the same storyline.

Not really, the plot is pretty much the same but the K-drama feels cheesy somehow.

At first, I watched the K-drama (in 2017) and I loved it. But as I watched the original Japanese movie (2013 version), I felt that original is always better. As much as I liked the leading man in the K-drama, the leading man in the J-movie is much more intense, charming and charismatic. The personality of the leading man in the K-drama did not quite convey that aura. Not sure, maybe because its a drama and they had to make it long somehow to make it interesting...

I just liked the J-movie more. But for sure, watch both. Why not.

Both have a young girl begin as shy, quiet, and intrinsic, but overtime, she shine, her talent discovered. Her sweet voice touches everyone. Shen then faces difficulty to continue, the family, the friendship …

both stories are about music and songs. Both female protagonists are talented.

Miyu and Shuya are high school students. They have dated for 2 years. Miyu and Shuya have a promise that no matter what, they will watch a movie together on the first day of each new month. When Miyu and Shuya are on their way to the movie theater, Shuya suddenly cancels their date. Shuya seems like he is hiding something and he acts nervous. Later, Miyu goes to the place where she is supposed to meet Shuya, but she witnesses Shuya getting into a car accident. She panics, but when she wakes up she finds herself on the morning of the accident. Miyu keeps waking up on the day when Shuya got into an accident.

Lee Shin is a university student majoring in modern music. He is the vocalist of the band "The Stupid" and also plays the guitar. He is known for his good looks and his strong passion for music but is in reality a cold person who is uninterested in non-music related things and has no dreams nor plans for the future. Shin initially likes a dance professor at his university, but this all changes when he meets Lee Kyu Won. Lee Kyu Won is a bright and outgoing student who was born into a prestigious family and is majoring in traditional Korean instruments, especially the gayageum. Kyu Won's grandfather, Lee Dong Gun, is one of the top 3 traditional musicians of his age, and his biggest wish is to have his granddaughter trained to become a traditional music prodigy in 10 years' time. Trying to live up to her grandfather's expectations, Kyu Won immerses herself in training and becomes a university student who knows nothing besides traditional music. As Kyu Won's friends are fans of "The Stupid", she was forced to go to the band's concert with them. There, she saw Lee Shin performing live and is immediately captivated by him.

An older guy and high school girl. Mellow in tone with a bit of angst but not depressing.

High school graduate Gong Xi gives up her chances for university in order to support her childhood friend and romantic goal, Bu Po Shang, in his pop idol career. Upon arriving in Taipei, Gong Xi starts working on multiple jobs in order to support Bu Po Shang, whose popularity quickly rises, eventually becoming one of the top idols in Taiwan. One day, Gong Xi catches Bu Po Shang flirting with his manager, and learns that he only used her so she can help him with his living expenses. Heart-broken and betrayed, Gong Xi vows to get revenge by becoming a bigger star than him. Gong Xi auditions for L.M.E., Bu Po Shang's rival talent agency, and joins L.M.E.'s new-found department "Love Me". At L.M.E., Gong Xi meets famous actor Dun Helian, who eventually falls in love with her. ~~ Adapted from the manga “Skip Beat!” by Nakamura Yoshiki

A capable but unpopular showbiz manager, Kazuko, struggles to groom a younger, new male actor, Ryo, whom she had scouted, into a star. An unmotivated Ryo slowly becomes conscious of the pleasures of acting. Bonds of camaraderie grow, and before long, love gradually blossoms between them.

A behind-the-scenes look at the entertainment industry's PR teams, managers, and reporters as they scramble to clean up the messes created by their stars.

Oh Han Byul leads an entertainment agency's PR team. One of her top clients is the star Gong Tae Sung, who can do no wrong. They were in high school and college together, where he became her sworn enemy. They bicker constantly but soon develop feelings for one another.

One simple aspect music and musician and student. In the Hippie is a student too, but hey. There is great music in both and the lead actor in both composed the music and wrote the songs and sung them and performed them. So it's just fitting that it's here. However, Hippie is far from a liar. He's ridiculously raw and straightforward. This is on the superficial level of just music and rock.

There is the age gap between the leads. KWUWA is a little heavier, with a bit less romance. Not as fluffy as Kinkyori Renai.

The story is set in the music industry and depicts the romance between 23 year-old solitary composer Aki and high school student Riko.
Four high school classmates Aki, Shun, Kaoru and Teppei form the band called Crude Play. They're set to make their major debut once they graduate from high school. Just before their debut, Aki suddenly quits the band and is replaced by Shinya. The band achieves a new-found popularity on the music scene. Meanwhile Aki, who now composes, continues to provide his music for them. He's tired of the music business and finds his present situation rather boring.
One day, on a whim, Aki asks female high school student Riko if she believes in love at first sight. Charmed by his humming, she easily falls for him and they start dating, When Aki learns that Riko is a big fan of Crude Play, he keeps his association with the band a secret.
Riko herself has an attractive voice, singing and playing guitar in a band she formed with classmates Yuichi and Sota. Takagi Soichiro, the music producer who debuted Crude Play happens to be scouting for new talent. After hearing Riko sing he decides to sign her. As the realization of Riko's dream approaches, she learns of Aki’s role in making it come true. Despite Aki being initially dishonest with her, their relationship deepens to love

Both the protagonists of the two dramas meet by pure chance a person with a beautiful voice who will enter their lives.

Both are dealing with a student falling in love with an older guy. In both movies characters are mentally tortured because life isn't going easy with them, but thanks to their beloved they still manage to get through it.

ML is an actor but not too popular anymore & broke so he rent a room in FL house.
FL is a nerdy geeky/otaku girl who like to imagine & day dreaming about romance with her favorite manga/comic book character. Remind me of Rainie Yang & Jiro Wang drama....& still 1 of my favorite drama....If you like this genre this is a must watch romance comedy drama....