

Just to make it easy to understand my question here is the example below :

Suppose a person **X**

A User of the _Modo Modo no Mi_ use his/her **DF** ability and make **X**
younger by 12 years,

now another **DF** user (lets say) of the _Toki Toki no Mi_ use his/her **DF**
ability & sends **X** (who is 12 years younger because of the effect of the
earlier **DF** ) into the future...

my question is that, will the _Modo Modo no Mi_ maintain its effect on **X**
who was sent into the future or not ?


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one-piece
Can the effect of a certain devil fruit last through the effect of another devil fruit?


I believe so, yes. In your example, let's say X was originally 20 yrs old. He
was made 12 yrs younger so is now 8 yrs old physically in the current
timeline. Let's say he was sent 100 yrs into the future. Your question then
is, will he remain 8 yrs old physically in this future or not?

My guess is yes - he should remain 8 yrs old. I don't think he would be 120
(which is his "real" age had he lived through the entire time) nor 108 yrs old
(which is not what happened to Momonosuke and group).

...But like so many other questions in One Piece, it's just my speculation and
will remain so unless Oda-sensei confirms it.


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There are no known facts at the moment that support which way is the correct
one.

But if I am to make an educated guess, I think the **answer is no**. I think
that most Devil Fruits in One Piece have an "ability range" meaning that if
one can manipulate the objects near him, they will remain modified as long as
they are in this "range" of the Devil Fruit.

For ex: The DF of _vice-admiral Tsuru_ , [Woshu Woshu no
Mi](https://onepiece.fandom.com/wiki/Woshu_Woshu_no_Mi), allows the user to
literally "wash and hang out to dry" people and objects as if they were
clothes. I can't imagine that if she chooses so, those people will remain like
that for the rest of their lives. Same goes with _Trafalgar Law's_ ability or
_Sugar_ from Dressrossa. They have to be in a reasonable range so that their
respective DF powers work.

At least that is how I imagine the OP world works because otherwise it would
be total chaos and we haven't seen any other character that had traces of a
Devil Fruit ability on them that was used in the past (not their own DF powers
of course). And to answer your question, the person sent in the future will
automatically revert to their original nature and nullify any other DF
abilities that were used upon them.


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I will side with VXD here. Although, RigaCrypto puts some valid points there.
But they don't help much with the answers.

Once a permanent change has been made in the OP world by using a Devil
Fruit(DF) it has to be manually countered or complemented.  

> Exhibit A: Kin'emon and his torso => Punk Hazard.  
>  Exhibit B: Fugitora's Meteor shower from Dressroza.  
>

Hence, Yes X will be younger in the future. Not the other way around. Most
devil fruits don't have limitations of their own but it's upon the user as to
how much he can utilize the DF. But those with limitations like time or space
are mostly defined.

> Exhibit C: Foxy ate the Noro Noro no Mi, a Paramecia-type Devil Fruit which
> allows him to fire microscopic particles as beams of light that can slow
> down his enemies or other objects for 30 seconds (he demonstrates this by
> slowing down a cannon ball fired at him, only to get hit by the cannonball
> anyway when he was gloating over its power for too long)


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