underworld_princess wrote:Oh, I see. All right then, but what happens when Koenma tried to take his pacifier out? And how in the world did Kurama get WINGS???

Yeah, I know that Sensui did that 'cause I saw the episodes before Koenma takes out his pacifier, I just want to know how they all ended up in that cave.
But thanks for the brief synopsis. How in the world is Yusuke half-demon???
Koenma's pacifier can be used as the strongest weapon Spirit World has to offer, or something that can bring anyone back to life. Koenma tried using it on Sensui, but Sensui made Koenma waste most of his power by staing Gamemaster's death. He knew Koenma couldn't resist saving someone as innocent as Gamemaster. Sensui didn't want anyone to interfere with his fight.
Yoko Kurama does not have wings, he used his plants to make a type of glider that looked like wings.
They ended up in the cave because Seaman led the way for them to get to Sensui. After a little run in with Gamemaster, they arrived at the center of the cave. The rest of the battle takes place in Demon World after Yusuke's 'second' death.