The Brothers Yin and Yang

'''Lucemon has destroyed all three of the moons; only the warriors, Bokomon, Neemon, and the young Celestial Digimon survive. When they find out Lucemon is trying to establish dominion over both worlds, they confront him once more, but he proves too much until one of the warriors makes the ultimate sacrifice...'''

Summary
's attack destroys the three moons of the, leaving the stranded on a spare floating piece of the Yellow Moon. As they search for Takuya, Koji and the three, they fear they are dead like the other Digimon living on the other moons. They find them and then have a strategy session on a floating piece of moon discussing what they should do. Koichi decides to tell Koji what said to him, and  tells the others, despite his promise to Kouichi. To try and reach the where Lucemon was,, , and  power the rock forwards. Meanwhile, Lucemon sends out data streams to act as a bridge to the Human World. When the data breaks through the barrier, Shibuya can be seen, and all electronic devices show Lucemon Chaos Mode. Bokomon says that Digimon going to the Human World is impossible, but when he reads his book to find an answer, there is nothing but blank pages.

Suddenly, a stream of magma burns through the book, unveiling another passage saying that if Digimon go to the Real World, then they will create havoc before destroying it. The DigiDestined go into the Dark Area in one last ditch effort to fight but end up losing. Just as Lucemon is about to destroy them, stops the darkness and takes the hit, giving the Spirits of Darkness to Koji and turning into a spirit himself, which Koichi then scans. In anger at Lucemon scanning Koichi, Takuya bursts into flame and Koji into light, and with the help of their friends' D-Tectors, become.