The Liar and His Lover (2013)

Both movies has young girl and older man. Although the Japanese one the age gap is not as big as the Korean one

Both are about bands, vocalist hiding his true identity to his girlfriend. Both are based on famous manga.

Both female leads are very young. The relationship growth. Most significantly the young girl grow and learned and became more mature

Both feature a struggling musician who falls in love with a younger girl through music. The Liar and his Lover is more dramatic and talks about dealing with fame/forbidden love, while Fight Song is more about two people who’ve been having difficulties in life discovering new beginnings and falling in love for the first time.

Both were Japanese movies. Both female leads were high school girl. The men actually wasn’t that old. But the girl needs to grow older, mature and more life experience

Four high school classmates Aki, Shun, Kaoru and Teppei form the band called Crude Play. However, 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 but finds himself feeling increasingly tired and somewhat jaded from the music business.

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 from her. But how long will he be able to keep his secret?

Jang Joon Hyun is a talented and popular musician. He looks down upon the traditional trot music genre. Meanwhile, Choi Chun Hee works multiple jobs as the breadwinner to support her father and younger sister. Her mother was a trot singer and she inherited the voice, along with hopes of being a trot singer herself someday. A romantic relationship begins between these two individuals

both directed by the same director...those shots, that cinematography and the background music will feel the same. Kanojo is more mainstream and taiyou no uta is more indie but nontheless both yui and sakurako are tremendous singers.

Four high school classmates Aki, Shun, Kaoru and Teppei form the band called Crude Play. However, 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 but finds himself feeling increasingly tired and somewhat jaded from the music business. 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 from her. But how long will he be able to keep his secret?

Young actors & models gathers in this drama & form a rock 'n roll band. Lee Minki, Sung Joon & L aka Kim Myung Soo stars in this drama.

Music, romance, very sweet characters. Kanojo wa Uso Wo Aishisugiteru is a bit more mature and slightly melodramatic (but only very slightly). Make sure you watch until after the credits ;) while Ai Ore! Is more superficial and scripted to fit the label 'cute' (as with many manga adaptations)

Seung Hee, after losing his girlfriend in a tragic accident, left for 3 years. When he came back, he sought to make a film in a rural area. Someone caught his eye - Bok Shil, who looks exactly like his deceased girlfriend, Hye Soo. Seung Hee followed Bok Shil in order to get some answers and ended up falling for her. Still the questions remain, is he attracted to Bok Shil because of the memories of his ex-girlfriend, or does he like Bok Shil for who she is? What happens when competitors come into the picture and families opposing their love?

Similar stories with musical theme. A "musical drama" interspersed with a story, reminiscent of the Disney series.

Well, both shows about love through music with a dude being a musical genius and a girl having natural talent and a pure, honest heart. Both have a satisfying happy ending but with The Liar... you need to watch the after-credits scene. The Cantabile ML is totally different in character, funny, strong and sarcastic as hell, here we've got a more melancholic and supporting dude. Don't get me wrong - the Cantabile Chiaki-dude is supporting but in a different way and his mask agenda seems rude but in a funny way, you can't dislike his duo with Noda because their characters fit each other perfectly in such a romance-comedy. Try it.