She was a former female general, but she was killed by a traitor, and she thought she would die young. Unexpectedly, once he traveled back in time to a person who had been missing for many years and was just found, thousands of people thought he was really a daughter. So why doesn't it matter if several of his younger brothers and sisters don't want to see him? Let's see how she instigates a rebellion against the fake daughter and gets several middle school boys back on track.
Fake daughter: "Sister is so handsome!"
Secondary 2 brothers: "Eldest sister is so domineering!"
The frail little beauty: "You must be the one in this life."