Charlotte's birthday came to a halt. All the nobles enjoyed it as much as Charlotte and Louis enjoyed talking to each other. Since Leon and Lucien weren't present, Charlotte and Louis felt a little sad
It all happened after Leon informed them he'd participate in the volunteer work of aiding the children that his father had planned. It was a long-time project that he had been pushing through. Since Lucien was the first to accept it, Leon followed afterward
The party wasn't fun without them; Charlotte, as well as Louis, felt half-empty because their friends were on volunteer work. However, the two young men had a reason, and it was because of Charlotte and Louis.
They couldn't celebrate within the household, knowing they would only be hurt at the very end. It's because Lucien and Leon tried their best to win the lady's eyes and attention, but because it was too late, it's because it's Louis who was always in her mind then, that's when they finally gave up