The introduction translation is wrong, the twins are FL's younger brothers, FL had her 17th birthday in the first episode, the eldest son said in the second episode that the twins are only 16 years old, and the original Japanese text said that the FL is 義姉（older stepsister） .the English version has not been translated. In the second volume, the FL said that the twins are her 弟.弟（younger brother.younger brother）.younger brother.younger brother.little brother.little brother.
