Eventually, the maid directed Ryuuko to the dining hall, where she had seen both Toshiko and Yuuno heading to. She hadn't disturbed them, as it was likely they were busy with something relating to the case. Regardless of just what it was, Toshiko had seemed in quite a hurry. Perhaps there had been some sort of revelation regarding the case?

Either way, it was clear where they were.

Upon arriving there, Ryuuko would see Toshiko and Yuuno seated beside one another. Toshiko seemed rather pleased with herself, so there must have been some kind of development.