Romelia, a lonely girl, and Kutli, a young high-ranking soldier, are solemnly married in the presence of God. What they share, however, is not "conjugal love," but the "unbearable fate" they have mutually borne.
Alkaloid Bride is a completed manga by Oikawa Nijimi, first published in 2023. It blends romance, drama and fantasy. You can read all 9 available chapters of Alkaloid Bride online for free on MangaPulse; the newest is Chapter 25, added 2026-02-15. The series is finished, so you can read it from start to end in one go.