Wyba didn't reply after Yale's explanation, nor she changed to her human form, she remained in her half-beast form and didn't speak for the next few days and focused on training.
Although she was in a bad mood due to the current situation, Yale didn't mind too much because he was also in a bad mood due to what happened to Aiwai. At that moment, he only wanted to train, so he thought that spending some days training in silence would be good for both of them.
In those days Yale advanced to the 1-star Apprentice and mastered the Spiritual Sense on the Apprentice Rank completing the mission and obtaining a huge boost in his stats. However, the difference between the 1-star Apprentice and the 2-star Apprentice was huge, even with the huge boost he received from the sub-quest, Yale didn't advance.