Glass Heart is a new Japanese music drama series coming to Netflix on July 31, 2025. The series follows the journey of a young drummer who finds a second chance at fame with a new band. As the band rises to success, they face tough emotional moments, personal struggles, and dark secrets.
The show is full of music, passion, and powerful storytelling. It is based on a novel by Mio Wakagi, and features a talented cast and real musical performances.
| Title | Glass Heart |
|---|---|
| Genre | Music, Drama |
| Country | Japan |
| Language | Japanese (with English subtitles) |
| Based On | Novel by Mio Wakagi |
| Directors | Kensaku Kakimoto, Kohtaro Goto |
| Writers | Mari Okada, Tomoko Akutsu, Shiho Kosaka, Anna Kawahara |
| Release Date | July 31, 2025 |
| Streaming Platform | Netflix |
| Age Rating | TV-14 (Teens 14 and older) |
| Main Cast | Takeru Satoh, Yu Miyazaki, Keita Machida, Jun Shison, Masaki Suda |
Glass Heart Age Rating
Glass Heart is officially rated TV-14 by Netflix. This means the show is meant for teens aged 14 and older. It includes some mature scenes such as emotional distress, mild violence, and self-harm themes, but there is no graphic content or adult material.
This age rating suggests parental guidance is advised for younger viewers.
Age-Wise Viewing Guide
| Age Group | Is It Suitable? | Reason |
|---|---|---|
| Under 13 | Not suitable | Themes of death and emotional trauma |
| 14–17 | Yes (with guidance) | Mature teens may enjoy the story |
| 18+ | Yes | Safe and engaging for adult viewers |
Is Glass Heart Appropriate for Kids?
Glass Heart is not made for young children. While the story is about music and dreams, it also shows some serious emotional moments, mental health struggles, and a murder.
Younger viewers may find some scenes upsetting or confusing. The show is best suited for mature teens and adults.
Netflix’s Glass Heart Parents Guide
Here is a simple explanation of what parents should know about the content:
Violence
- The series includes brief scenes of violence.
- One character is shown to be murdered, but the violence is not the main focus.
- Some scenes include light blood content.
Self-Harm and Emotional Themes
- A few scenes show characters dealing with self-harm or deep emotional pain.
- These moments are part of the story’s serious tone.
- Characters also experience mental stress and emotional breakdowns.
Language
- No strong language is confirmed, but some mature conversations may happen.
Sexual Content
- There is no sexual content or nudity in the series.
Alcohol or Drugs
- No drug or alcohol use is shown.
Tips for Parents
- If your teen is 14 or older, they can watch Glass Heart, but parental supervision is a good idea.
- Talk to your child if they have questions about mental health or sad scenes in the show.
- This show can be a great way to start important conversations about emotions, teamwork, and following dreams.
- The music and performances are inspiring and enjoyable, especially for young fans of Japanese entertainment.
Glass Heart Official Trailer
The official trailer for Glass Heart is now available online. You can watch it on Netflix’s official YouTube channel or the Netflix app.
It gives viewers a sneak peek at the band’s journey from struggle to stardom, emotional highs and lows, and the powerful performances that drive the story. The trailer also features the original title track “Glass Heart,” performed by the cast.
This Musical series is set to be released on Netflix on July 31, 2025.
FAQs
Q: What is the age rating for Glass Heart?
A: Glass Heart is rated TV-14, which means it’s best for teens aged 14 and up.
Q: Is there any violence in Glass Heart?
A: Yes, the show has some light violence and a murder scene, but it is not the main focus.
Q: Does the show include self-harm?
A: Yes, there are a few scenes that show emotional distress and themes of self-harm.
Q: Is Glass Heart safe for kids under 13?
A: No, the series is not suitable for children under 13 due to its emotional and serious content.
Q: Is there any sexual content in Glass Heart?
A: No, the show does not include any sexual content or nudity.