Small kindness, big repayment of gratitude

In a lounge at a certain academy, there were several young ladies from high-ranking noble families and one young lady from a low-ranking noble family. The one who had been summoned couldn't fathom the reason for her summons and sat nervously. Despite having lived modestly and quietly, she couldn't figure out where she had displeased them—and as she racked her brain internally, the young ladies spoke to her gently.