Tune In to the Midnight HeartTune In to the Midnight Heart.

Tune In to the Midnight Heart (Japanese: 真夜中ハートチューン, Hepburn: Mayonaka Hāto Chūn) is a Japanese manga series written and illustrated by Masakuni Igarashi. It began serialization in Kodansha's Weekly Shōnen Magazine in September 2023, and has been compiled into fourteen tankōbon volumes as of August 2026. The series is simultaneously serialized in English on Kodansha's K Manga digital service.