Hummingbird Effect

You are reading Hummingbird Effect manga, one of the most popular manga covering in Drama, Romance, School life, Slice of life, Tragedy, Webtoons, Yuri genres, written by Yook Mi Leeds at KaliScan, a top manga site to offering for read manga online free. Hummingbird Effect has 21 translated chapters and translations of other chapters are in progress. Lets enjoy.
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A few generations ago, a mysterious phenomenon occurred. Humans now die after 1.5 billion heart beats; half the heart rate they originally had. Schools began teaching students how to control their emotions and regularly preformed heart rate tests. No one is allowed to use more than the number assigned per week. This is the story of 2 girls that chose to love in this world regardless of their heartbeats.