The Villainous Director Is Raising a Child!

I, a former kindergarten teacher, possessed the Director of a research institute who abused the protagonist—a Test Subject.I raised the children with all my heart, helped them escape, and then lived in deep hiding because I didn’t want to get involved with the original story… “Director, from now on, we’ll take care of you for the rest of your life.” The children, who had become the strongest beings in the world, tracked me down. But… why is the look in their eyes a bit strange? “Um, guys? That thing you’re holding… are those handcuffs??” — Description from novelcodex.org