Hakbumodeuri Naege Jipchakanda

Eleanor died from overworking as a teacher in her past life, so now she's determined not to work! She teaches her brother to be the prince's aide so he can be the breadwinner instead. When he reveals his sister is the true genius, she is asked to tutor the siblings of the most influential men in the land: her best friend, a handsome duke, and the crown prince. How can she refuse?! But is a good education all they want from her? Maybe this time, her job won't ruin her life but lead her to love…

(Source: Tapas)