At Luo Yu's request, Tobi followed him to the villa's training ground.
"Which Ninjutsu do you need me to demonstrate?"
Tobi looked at Luo Yu.
After a moment's thought, Luo Yu said, "Let's try the Wood Locking Wall first and see how it feels."
Wood Release: Wood Locking Wall was a one-and-a-half-star defensive Ninjutsu with roughly the same function as the Water Formation Wall. He might as well pick it up while he was at it.
Upon receiving the order, Tobi rapidly formed hand seals. Wooden slats suddenly sprouted from the ground and closed neatly together.
They formed a sturdy, arched wall in front of him.
At the same time, Luo Yu activated his Three-Tomoe Sharingan, committing the paths of Tobi's chakra flow and every detail of his hand seals to memory.
Congratulations, host! You have learned Wood Release: Wood Locking Wall Lv.1!
Only after receiving the system notification did Luo Yu relax.
It seemed that all he had to do was first upgrade one Ninjutsu of each elemental nature to level five.
Then he could learn other Ninjutsu of that nature with a single glance.
Having confirmed his theory, Luo Yu recalled how his sister had seemed out of sorts these past few days and immediately asked Tobi a question.
"Has my sister been spending time with any other men lately?"
He suddenly regretted buying his sister a phone.
He hadn't enjoyed living alone with her nearly enough yet. The last thing he wanted was a brother-in-law suddenly appearing.
If that really happened, he would turn into a raging brat.
"I don't think so. She's been looking into the Two-Dimensional World lately."
"Where would she find the time for anything like that?"
Luo Yu froze. "Hasn't she always hated pretty anime girls?"
"Why has she suddenly-forget it.