Number 39: Utopia (character)

biograpie Number 39 utopia is yuma tsukumo's main monster and the only number card to remain in astrals possesion at the beginning of the series.

Utopia did not seem different from the other numbers for most of the serie until episode 37.

When number 96 black mist was supported by the other numbers to break his seal and assault astral Utopia protected him, both black mist and astral were suprised at his action and the former asked him if he meant stop him

this suggest that like black mist utopia is able to act on his own.

triva utopia is the only number card to date to have an chaos form which astral called the emissary who changes confussion into light hinting that utopia has a specific role in astrals mission.