While My Brother Is Still Young, Trick Him into Not Being an Oni-Chan.

[Light novel + daily life + relaxation + humor + healing] "Although I am a boy now, once the seal in my body is lifted, I can turn into a cute loli!" That year, the boy with secondary school syndrome deceived his classmates like this. However, when the boy was twenty years old, he was drugged by his own sister and turned into a girl. The boy never dreamed that he could make his words come true. His face was full of pain. "It seems pretty good to be a girl?" Is this a distortion of human nature or a loss of morality?