My Sister Is the Demon King

Gui Can, the author of The Eunuch, was kicked into the Middle Ages by his elder sister. Both his parents died, but his elder sister had a house. Well... Wait a minute? Ha? Is this wretched boy my fiancé? Hey, why do you have my room key? Show me the big baby? Oh my god, sister, help me! Why is my sister the devil of the universe? Phew, it's okay, it's okay, my sister loves me the most, emmmmm, wait a minute, sister, please don't touch my underwear! This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.