The Demon Lord Also Wants to Please Me

Finally recalling the past In my previous life, my brother abused me in every possible way, and I became a psychopath. If my brother dies, then I will be compensated by the person I picked up. "Brother? Brother doesn't have a name? Can he have my last name?" "Okay." "Brother is not allowed to play with others. Brother only plays with me, okay?" "Okay." "Brother, brother only likes me, okay?" "Okay." "Brother, I want to hear you call me husband, okay?" "Okay... Hey, this is not good..." Early stage|Yandere|Paranoid|Tsundere| Later, it was my brother's little milk cat. HE (not an orthopedic article, not a substitute article.) Intention: I hope you can find your own light in difficult days.