Setsuna is the MC's wife. She works as a hitman (got it from her father) and has a very calm and cold personality. But when with her husband her coldness shows flaws and she often tries to suppress her emotions when that happens. She is a kuudere. She also has a younger sister named Haruka

Dear Sir... I Married a Killer
The profession of a calm and calm wife ... a killer !? But my life with my wife who can't kill her emotions in front of her husband is exciting in many ways ♪ I want to be loved enough to be killed by my bride. Married killer's love comedy!