"I thought fighting against Clark would be the most disgusting experience I will ever have... but this just tops it."
Around a month ago in Van's perspective, a few minutes after he brought the Platinum-rank Explorer to the Pit for Charlotte to fight, Charlotte was already surrounded by the Explorer's guts.
Perhaps one couldn't even call it a fight, as it really only lasted for almost a minute. The rest of the time was spent with Charlotte shrugging of the bits and pieces of the platinum-rank explorer. Since the skin of the explorer was probably harder than diamond, as soon as Charlotte was able to pierce it, his skin and flesh started to fly all over the place.
Some of his diamond-like skin even managed to pierce Charlotte, hence her current situation of being almost disgusted to death.