The Databook says that Reverse Harem Justu is a "D" rank Jutsu

[SS100]

harem no jutsu is practically one of the most useful jutsu in real life

 

[MAN OF SIN]

The rank of a Justu has to do with it's acquisition level, not
It's streanght.

Basically, if a Justu is easy to learn its D rank- if it's hard to learn its S rank.

You didn't get the joke did you?

 

[Nelmanaly]

Me when i got the joke:

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[questin1]

This is perfect, thanks for the best joke of the day.......... so far

 

[MAN OF SIN]

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I get it, but not funny.

Doesn't matter if you found it funny or not. It's still ironic.

 

[~Uzumaki~]

I see what you did there lol