26-year-old Yong-jun hasn't quite figured things out yet – but when he reluctantly agrees to start working part-time for his parents' lunchbox shop, a chance encounter suddenly breathes new life and possibility into his summer. Making a delivery to a swimming pool, he meets and immediately falls for Yeo-reum: the sunny and devoted sister to Ga-eul, a gifted swimmer who is deaf and training to qualify for the Olympics. The two sisters communicate in Korean Sign Language, which Yong-jun is fluent in too. Chasing his heart, Yong-jun sparks a journey of discovery in all three of their lives.
Unfortunately the movie Hear Me: Our Summer is not yet available on HBO Max.
| Production | Yang Soo-jung | Producer |
| Sound | Cho Young-wuk | Original Music Composer |
| Directing | Cho Sun-ho | Director |
| Writing | Cho Sun-ho | Writer |
| Editing | Kim Sun-min | Editor |
| Camera | Kang Min-woo | Director of Photography |
| Writing | Cheng Fenfen | Original Film Writer |
| Production | Lee Ji-hyeon | Line Producer |
| Writing | Ham Bo-ram | Storyboard |
| Directing | Jung A-won | Script Supervisor |
| Directing | Lee Gyeong-won | Assistant Director |
| Writing | Na Jae-won | Writer |
| Writing | Kwak Kyeong-yoon | Writer |
| Writing | Cho Sun-ho | Adaptation |
| Lighting | Lee Seung-ho | Lighting Director |
| Sound | Koo Jong-ryul | Production Sound Mixer |
| Art | Kim Deok-soon | Production Design |
| Costume & Make-Up | Lee Seo-jin | Makeup & Hair |
| Sound | Kim Suk-won | Sound Supervisor |
| Production | Kim Jae-joong | Executive Producer |
| Art | Kim Ki-hwan | Set Decoration |
| Art | Park Sung-yoon | Props |
| Costume & Make-Up | Yoon Hye-in | Costume Design |
| Visual Effects | Park Dae-hun | Special Effects Supervisor |
| Visual Effects | Kim Chang-gyu | Special Effects Supervisor |
| Crew | Kim Cha-i | Martial Arts Choreographer |
| Crew | Choi Jae-ok | Martial Arts Choreographer |
| Editing | Woo Chan-yang | Digital Intermediate |
| Camera | Park Ji-seul | Key Grip |
| Visual Effects | Hwang Yong-tae | VFX Supervisor |
