What You Lied to Me to Sign Is a Marriage Contract! !

[Western Fantasy][Double Heroines][Light Novel] Huh? When I woke up, my family was gone, my sister was dead, and I was coaxed into signing a contract to become a mortal enemy vampire... A blood servant (food reserve)! ? What a joke! I am Noctia Calix, the strongest assassin in the Temple of the Moon [Blade of Silver Moon]! What's even more outrageous is that my "master" turned out to be a troublesome queen who looks only seven or eight years old and looks exactly like my sister, but is actually an ancient true ancestor who has lived for hundreds of years, and will explode (?) If she doesn't eat donuts for one day! ? Well, for revenge, and to fulfill the contract (of being tricked), help this guy who only eats and sleeps, and occasionally destroys the world, to find her "figures" (limbs, heads, etc.) Scattered across the continent... I reluctantly... Take her with me! But... Why are the princesses, saints, and even the black dragon from hell all encountered on the way to escape? There is also that [Brotherhood of Eclipsed Shadows], they are doing things behind the scenes every day, can you please stop! ? The most important thing is... This guy! Don't always look at me like that while shouting "Humanity is my property"! Will your heartbeat speed up? Anyway! This is a passionate (?) Fantasy adventure of a former assassin girl who is cold on the outside and hot on the inside (complaining about her work), with a super strong (but super troublesome) loli queen, while fighting monsters and upgrading (mainly killing the queen instantly), while looking for body parts (while eating desserts all over the continent), and finally (probably) saving the world (by the way falling in love?)