Kokushibo was the upper moon 1 he was the strongest of all the upper moons, While douma was the upper moon 2 also very strong, douma used a fan, And the kokushibo is a katana.

One day, kokushibo was sitting talking to the upper moon 6.2, kaigaku, until douma arrives and hugs kokushibo from behind.

"Kokushibo-donoooo!!" Douma says very excitedly while holding the fan.