Bocchama, Omoshiree Onna de Gozaimasu

Shinobu attends the private Eikai Academy where the elite gather. Shinobu works part-time to support her sick mother and five siblings, but one day she is scouted to be a tutor for Kazuma, the heir to the Amano family, a large conglomerate. This is a romantic comedy about a poor high school girl and a spoiled heir.

(Source: Natalie, translated)