In order to find her ideal partner Heartsping, Romi went deep in the mysterious and dangerous magic forest. She was fearless, determined and brave, and worked with her partners to successfully solve this misunderstanding and rescue Heartsping, who was in a crisis. Heartsping was finally captured by Romi's extraordinary courage and kind heart. Impressed, and teamed up with Romi.
Unfortunately the movie Heartsping : Teenieping of Love is not yet available on HBO Max.
| Directing | Kim Su-hoon | Director |
| Production | Min Seul-ki | Producer |
| Production | Song Mi-seon | Producer |
| Production | Shin Hyeon-deok | Producer |
| Production | Kim Su-hoon | Executive Producer |
| Sound | Jo Seong-hee | Sound |
| Sound | WINTER | Theme Song Performance |
| Visual Effects | Kim Dae-yeol | VFX Supervisor |
| Writing | Ryota Yamaguchi | Original Story |
| Visual Effects | Kim Young-jin | Animation Director |
| Writing | Naruhisa Arakawa | Writer |
| Sound | Kim Tae-ho | Music |
| Production | Kang Byeong-chae | Producer |
| Writing | Jo Yeong-gwang | Storyboard |
| Art | Im Ji-eun | Production Design |
| Art | Kim Yu-jin | Production Design |
| Art | Seo Bo-guk | Art Direction |
