My Lovey-Dovey Wife Is a Stone Cold Killer
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| My Lovey-Dovey Wife Is a Stone Cold Killer | |
 First tankōbon volume cover, featuring Setsuna | |
| 拝啓…殺し屋さんと結婚しました (Haikei... Koroshiya-san to Kekkon Shimashita) | |
|---|---|
| Genre | Romantic comedy[1] |
| Manga | |
| Written by | Donten Kōsaka |
| Published by | Media Factory |
| English publisher | |
| Magazine | Comic Cune |
| Original run | September 27, 2019 – present |
| Volumes | 8 |
My Lovey-Dovey Wife Is a Stone Cold Killer (拝啓... 殺し屋さんと結婚しました, Haikei... Koroshiya-san to Kekkon Shimashita), also known as Dear Sir... I Married a Killer, is a Japanese manga series written and illustrated by Donten Kōsaka. It began serialization in Media Factory's Comic Cune magazine in September 2019, and has been compiled into eight volumes as of September 2025. The series is licensed in North America by Seven Seas Entertainment.
The series follows a salaryman who recently married Setsuna, a professional assassin. Having only dated for a short time prior to their marriage, he is surprised to learn of her background. Despite this, he comes to accept her work. The story follows the couple as they balance married life with Setsuna's job as a hitman.
Characters
- Husband (旦那, Danna)
- Voiced by: Yūya Hirose (voice comic)[1]
- The unnamed protagonist, he is a salaryman who met Setsuna after they were introduced by a mutual friend. Because they only met a few times before they started dating, he did not know about her job as an assassin. Although they are already a couple, he is still not used to married life.
- Setsuna (せつな)
- Voiced by: Marika Kōno (voice comic)[1]
- A professional assassin who had just recently married. She met her husband after their mutual friend invited them to a drinking party. She is proficient both as a hitman and at household chores. Because of her work, she assumes a cold personality, although she warms up as her relationship with her husband develops.
- Otonari-san (音成さん)
- Voiced by: Mai Fuchigami (voice comic)[1]
- Setsuna and her husband's next-door neighbor. Her name is a play on the Japanese word for next-door neighbor, otonari-san (お隣さん).