Kizoku kara Shomin ni Natta no de, Konyaku wo Kaishou Saremashita!
When I Became a Commoner, They Broke Off Our Engagement!·貴族から庶民になったので、婚約を解消されました！
A thirteen-yearly-old girl was raised in a noble household but does not resemble her family or possess their magical abilities. It is later revealed that a fairy swapped her with another infant at birth. Upon discovering this, her family expels her and terminates her engagement to a nobleman who had consistently shown her contempt. Stripped of her sheltered upbringing, she must now adjust to living as a commoner with her newfound family.