Early morning.
Mu Yue made himself an ordinary breakfast before heading to the Southern Forest to teach his disciples.
In truth, Mu Yue had already passed the stage where Tenten was teaching disciples.
The further one progressed in ninja training, the more things could not be mastered through teaching alone. Disciples also had to study and train diligently to absorb them.
But if there was an important new skill, Mu Yue would still arrange relatively intensive lessons so his disciples could master it sooner.
In the morning, Mu Yue mainly used his original body to teach Shisui and Obito Blue Flare, while his Shadow Clones watched over the other disciples' training.
Because he had completed the Yang Seal last night, Mu Yue's original body extracted Chakra and stored it in the Yang Seal whenever he had a spare moment.
He had spent rather too much time preparing Tsunade a lavish late-night meal last night. To ensure he had enough energy today, Mu Yue went to sleep not long after returning from the meal, so he had not stored much Chakra in the Yang Seal.
During the noon break, Mu Yue's original body went alone into the depths of the Southern Forest.
He wanted to test the Yang Seal's effects.
Though it had theoretically succeeded already, Mu Yue would not teach his disciples a Ninjutsu he had never used himself. He had to put it into actual use and check for problems.
After reaching a distance where he would not disturb the disciples' rest, Mu Yue stopped, concentrated his breathing to the utmost, and activated the Yang Seal.
"Yang Seal: Release!"
As the Chakra stored within the Yang Seal was released, the flame mark on Mu Yue's forehead glowed red. Then fiery red patterns spread around it, resembling a burning flame.