"... starting from understanding these new skills in depth"
"The first? King's Aura."
"My second oldest skill," Ryuk mused silently to himself.
[Not a skill you use very often,] the system said—and to that, he had no choice but to reluctantly agree.
"That's correct. King's Aura is one of the skills I used the least, and I barely even upgraded it—it's still only Lv. 1 even after all this time."
[And what's the reason behind that?] the system asked.
Ryuk thought about it quietly for a minute before replying.
"Because I had too many skills previously."
"King's Aura is an intimidation skill that also helps bolster Isha and Void's strength, but I barely used it."
"And that's because I had a plethora of different skills that were just more effective in dealing with combat situations compared to King's Aura."
"That's the sole reason why I almost forgot its existence," Ryuk admitted, nailing the exact reason, but his heart steeled.
"But this time, I'll take a different path."