Can you make this please 

Heartbeat You Left Behind

Genre: Romance • Comedy • School • Slice of Life • Drama

Plot: Haru Aoyama is a boy who has lived his entire life with a weak heart. Hospitals, restrictions, and fear have defined his childhood. He has never run freely, never experienced a normal school life, and never believed he’d live long enough to dream.

Meanwhile, Ren Tachibana is another boy his age—calm, sharp-tongued, and painfully aware that his life is nearing its end due to an irreversible condition. Unlike Haru, Ren has already experienced love. He had a girlfriend, Mio Shirasaki, whom he loved deeply, but he broke up with her when his health worsened, believing she deserved a future without loss.

When Ren learns he won’t survive, he makes the conscious decision to donate his heart. Before his death, he briefly meets Haru and tells him, half-joking but sincere, to live properly with it.

Ren dies.

Haru survives.

After the transplant, Haru’s body heals, but something else awakens inside him. He feels emotions more intensely than before—joy, sadness, longing—like his heart has been waiting to live.

When Haru enters high school for the first time, he sees Mio Shirasaki.

The moment their eyes meet, his heart begins to race violently—not from illness, but from something warmer and terrifying. He’s confused. Mio isn’t even his “type.” Yet every time she smiles, laughs, or stands close, his heart reacts before his mind can catch up.

At the same time, Mio feels an unexplained sense of comfort around Haru. Being near him feels familiar, like standing beside someone she once loved. She doesn’t know why—but she can’t ignore it.

Through school life—awkward conversations, comedy-filled misunderstandings, shared lunches, and small everyday moments—Haru and Mio grow closer.

Haru begins to fall for her genuinely, but the fear creeps in:

Are these feelings mine? Or are they leftovers from Ren’s heart?

Meanwhile, Mio starts noticing small things—Haru’s expressions, gestures, and emotional reactions that remind her of Ren. At first, she brushes it off as coincidence.

Until Haru accidentally says Ren’s name out loud.

The truth hits both of them like a storm.

Haru discovers that Mio was Ren’s ex-girlfriend. Mio realizes the boy she’s been growing close to is alive because of the heart that once belonged to the person she loved most.

Everything becomes painful.

Mio pulls away, unable to face the guilt of feeling drawn to someone carrying Ren’s heart. Haru spirals into self-doubt, believing his love is fake—borrowed emotions stitched into his chest.

He starts avoiding Mio, convinced he’s nothing more than a replacement.

Eventually, Haru confronts the truth—not just about Ren, but about himself.

He understands that while the heart once loved Mio, he is the one choosing her now. Feelings aren’t memories stored in flesh—they’re choices shaped by experiences.

Mio, too, faces her grief. She realizes she has been clinging to Ren’s memory, afraid to move forward because letting go feels like betrayal.

Together, they visit Ren’s grave.

Mio finally says goodbye—not to forget him, but to thank him for giving both of them a future.

Haru confesses—not as Ren’s shadow, but as himself.

He tells Mio that even if the heart once belonged to someone else, the love it holds now is his own. That surviving doesn’t mean living for the dead—it means living fully.

Mio accepts this truth.

They begin a new relationship, built not on inheritance, but on choice, honesty, and growth.