Crimson Heart

In the magical realm known as the Unknown, filled with enchanting blue fireflies, lies Refugia, a city strictly isolated from magic. When a group of curious girls from Refugia stumbles upon an ancient book and a red necklace in their library, they unwittingly embark on an adventure. Drawn by the allure of the blue fireflies, they cross forbidden boundaries for the first time. Guided by the legendary Crimson Heart and a cryptic message urging them to “Break the curse of Blue Firefly Island,” the girls delve deeper into the Unknown, unraveling the hidden truths of Refugia and the mysteries surrounding the blue fireflies. What challenges and revelations await them on their journey? Read the MANHWA (Coração Carmesim, Corazón Carmesí, Scarlet Heart, 진홍빛 심장 (Jinhongbit Simjang), 深紅の心臓 (Shinku no Shinzou), 绯红之心 (Fēihóng zhī Xīn)) online at ChapterCodex for free, with non-intrusive ads and the latest chapters updated.