Not only had he registered for the tournament under the name "Illumi," but he had also exchanged contact numbers with Killua.
More precisely—
Moyu's existence had prompted Killua to buy a phone.
And after buying a phone, Killua had not even considered contacting his family—him—but had instead saved the contact number of an outsider, Moyu.
Having witnessed this with his own eyes, Illumi felt as though Moyu had stolen something from him, and the raging flames rising from his heart became impossible to suppress.
As expected—
It had to be done soon.
Destroy that thing!
The negative emotions surging from Illumi's heart transformed into an aura that rampaged outward.
Although Tsubone promptly spoke up to warn him, she was ultimately a step too late.
That aura, which had manifested for several seconds, would undoubtedly alert the unidentified "watcher."
Such a mistake should never have happened.
Tsubone sighed inwardly.
She had originally thought Illumi's arrival would be a tremendous help, but who would have thought he had come only to hold her back?
"Young Master Illumi."
Tsubone turned her head toward Illumi. Her aged, wrinkled face showed no change because of his lapse in composure as she calmly asked,
"Could you explain in detail what you meant by, 'He investigated me after that night'?"
After they met up, Tsubone had been the one providing Illumi with all the information she had gathered during this time.
That was only natural, since Illumi had only just arrived...
But now, it seemed Illumi possessed far more information than Tsubone did.
That was why she asked.
"..."
Illumi slowly reined in his aura.
He realized he had lost his composure, and that his excessive reaction just now would alert the unknown "watcher."
But so what?
What mattered now was destroying the person who was already