The "top" refers to dominance. In the power exchange, the person who keeps the secret holds the "top" position. Nia Nacci knows the protagonist failed a class, deleted a save file on a video game, or watched something he shouldn't have. She isn't telling, but she isn't forgetting either. She is keeping the secret on top of her daily priorities, using it as a silent sword dangling over the household peace.
Nacci was known for her keen eye for detail and her ability to notice things that others often missed. Brattysis had been friends with Nacci's family for years and had created a special bond with the young girl, who shared her love for art and mystery. brattysis nia nacci keeping a secret top
It appears this phrase may be a combination of: The "top" refers to dominance
Have you ever had to keep a secret that was hard to keep under wraps? Whether it's a surprise party, a confidential conversation, or a personal secret, keeping secrets can be challenging. She isn't telling, but she isn't forgetting either
Nacci was amazed and a little bewildered. She looked at Nia, who seemed completely unaware of the secret the top was sharing. Brattysis, who was watching from a distance, smiled to herself. She had been waiting for the right moment to reveal her secret, and now that it was out, she felt a sense of satisfaction.