C898 Insta-killed and Knocked out

What was the most powerful thing about Ninja?

It was in their invisibility, in their sneak attacks, in their silence, in the fact that you could hardly feel his presence, and then, under a fatal blow, the strength of Ninja was vividly displayed!

Therefore, there was no doubt that Ninja was very powerful.

However, when Ninja was not invisible, their strength would be weakened by at least half..