Dear Ninjas,
We'd like to inform you on the new rules on "Great Ninja War".
The amount of battlefields open in Great Ninja War are related to the
amount of participants. When participants are fewer, the number of
battlefields will also be adjusted and less battlefields will open (this
process depends on the number of participants of the last 3 weeks).
The number of opened fields are determined by case to case basis, which means it can change depending on both warring groups.
In
order to unlock all 6 fields, a minimum of 27 participation is required
by any of the two warring groups. Unless none of the warring groups
reached 27 participations in last 3 weeks, they will have to war within
the 3 top fields (10, 8 and 7)
Naruto Online Support Team