8th Floor [Make-Out Paradise Is So Good][IP: Konoha]:
Wait, doesn't the OP's description sound way too familiar?
An immortal body, only vulnerable to Senjutsu, Fuinjutsu, and taijutsu—this is way too specific—
GOOGLE SEARCH TWKAN
And besides, concepts like Senjutsu are still only theoretical even in Konoha, aren't they? Is it really okay to reveal this so openly?
And—
How did an enemy like this even appear?
If it isn't bound by the chakra system and can also manipulate space—this doesn't sound like a creature from the Shinobi World.
—From beyond the heavens?
9th Floor [Wholeheartedly Ichiraku Ramen][IP: Konoha]:
Please support Ichiraku Ramen!
If you can't beat it—Ichiraku Ramen is willing to provide every combatant with three free bowls of Ichiraku Ramen!
10th Floor [Thinking Like the Hokage][IP: Konoha]:
I agree with the senior on the 8th floor.
11th Floor [Basement Renovation Worker][IP: Konoha]:
I work in civil engineering.
If ninjutsu is ineffective, what about physical objects?
Physical objects accelerated with ninjutsu should still work, right!?
12th Floor [A Shadow Who Just Wants to Get Off Work][IP: Konoha]:
Hey, hey, hey—
Is it really okay to discuss the source so openly?
Besides, our boss is sitting in his office watching right now—also, our boss can do everything we're discussing too—
By the way, why is the 5th floor gone? Did you die, 5th floor—
But since this thread hasn't been locked yet, I'll say a bit more.
If you really want to defeat that kind of enemy, first ensuring the chakra network remains unobstructed should be necessary—second, if it's only regeneration, then borrowing server chakra to form a sufficiently massive chakra sealing array should work.
But that would basically mean creating a new super-large-scale ninjutsu, so it would probably be troublesome.
They'd likely have to transfer quite a few programmers. If