First Blood. This was the first achievement, and it was also what had first brought him into contact with the system's functions. But now there was another "First Blood." Although the system had not mentioned any achievements, it still left him feeling puzzled.
"Whoosh—"
"Come back!" Though his mind was occupied, everything he saw and heard still came through his eyes and ears. Someone had tried to ambush him while he was distracted, and he noticed immediately.
Mirai sensed the person's position behind him. Without turning around or looking back, he drew back his long blade and thrust it behind him.
"Wah—" Clearly, the man had not expected Mirai to discover his surprise attack without even looking back. In order to land the strike, he had suddenly burst out at twenty percent greater speed than usual. As a result, he struck Mirai's vital point—but failed to avoid the counterattack!
His limbs gradually went weak, unwillingness flashing in his eyes. Gathering the last of his strength, he pulled back the kunai in his hand. Unfortunately, under the dual protection of Armament Haki and Steel Skin, his feeble stab came to an end the moment its tip reached Naruto's body.
"Double Kill!" In truth, his actions just now had been abnormal. Under normal circumstances, he would never have allowed an attack that could threaten his life. He would have turned and dealt with the man behind him as quickly as possible. The reason he had not reacted was because this voice had sounded in his ear.
"Dou... Double Kill?" he muttered. "This isn't the same as when First Blood appeared."
His heart was in turmoil, but at the same time, an increasingly intense thought suddenly arose in his mind: kill more enemies as quickly as possible!
The current situation was unlike anything