Why Kaori lied in Your Lie in April

Arima and Kaori as seen in anime
Arima and Kaori as seen in anime (Image credit: A-1 Pictures and Aniplex)

When Kaori’s final letter to Arima in Your Lie in April started to take over the music, it was not just the tragedy of her death that made fans go emotional. It was her lie. The little white lie that became the emotional center of the anime: Kaori telling Kosei Arima that she loved Ryota Watari when in reality her heart was always with Kosei.

But why did she have to lie? To understand the depth behind it, you have to know her background and her intention. The series never hid that she was sick from the start. There were subtle hints that she had a fragile body; the only reason no one doubted it was a terminal illness was that it was not specified.

Although she knew that her body was failing her, she lied to shield herself and others around her. Knowing that Kosei Arima himself was suffering through a traumatic event, if she had confessed from the start, then chances are he would have fallen more into darkness.

Their relationship would have begun because of an undeniable chemistry, but it would have been doomed, and Kaori would have become a burden, both physically and emotionally and creatively. With Arima finally showing signs of recovering from his mother's death, which had rendered him musically paralyzed. Kaori didn’t want to anchor him to more pain.

Kaori, as seen in Your Lie in April (Image credit: A-1 Pictures and Aniplex)
Kaori, as seen in Your Lie in April (Image credit: A-1 Pictures and Aniplex)

So by her confessing that she has feelings for Watari, Kaori managed to maintain a distance between her and Arima without risking his mental state. Also, at the end of the day, Kaori in Your Lie in April never expected to be in a relationship; she just hoped to revive his music.

Instead of pushing him to return to his piano, she invited him subtly into her world by asking him to accompany her performance, then dragging him into practice, then appearing in his life again and again with energy that defied her declining health. This small lie had a major impact on Arima, as he focused on the music and helping her.

There’s something tragically beautiful about the way Your Lie in April explores young love under such grim circumstances. Kaori didn’t have the emotional tools to navigate death, relationships, and dreams all at once. But even so, she made one mature decision: to prioritize Kosei’s growth over her own happiness.


The Title: Your Lie in April as a narrative device

Main cast of Your Lie in April (Image credit: A-1 Pictures and Aniplex)
Main cast of Your Lie in April (Image credit: A-1 Pictures and Aniplex)

The name of the series itself had one of the biggest hints that referenced her lie. If we take it at face value, it refers to Kaori confessing her feelings to Watari. But in a deeper sense, it’s about how even the most beautiful things can be born from dishonesty. How one lie told out of love can set an entire life in motion.

Ironically, her lie is the most honest representation of her character. This one decision of hers tells us everything we need to know about her. At every step of the story in Your Lie in April, she chooses joy over sorrow, music over silence, and love over fear, even if it has to be hidden.

Moreover, it’s Kaori’s lie in Your Lie in April that made their relationship unforgettable. They never go on a real date. They never say “I love you” face-to-face. There’s no kiss, no long future, no romantic ending. But somehow, that almost makes their bond more powerful.


Final thoughts

Kaori's choice to lie was never to betray or make a fool out of Arima. She knew it was for the greater good, and that’s what makes Your Lie in April such a masterpiece. It doesn’t just tell a love story; it composes one, note by note, until the silence at the end becomes louder than any symphony. Kaori lied to protect the boy she loved. And in doing so, she gave him the truth he needed to live.

Edited by Ishita Banerjee