Basically, two main things happen in this chapter: Sakaya and Okuira resolve their differences and get back together, and then Kobato, with a look of relief and fullfillment, turns to serenely and intently look up at the sky. Then, out of the heavens, Usagi floats down to a calm and content Kobato. It looks like Kobato's time to leave the earth has come at last.
Come on, Fujimoto, this is the part where you run up to her and yell 'DON'T GO, I LOVE YOU!'! Seriously Fujimoto, if you do not do that, I will wring your neck. Please, finally man up and tell her how you feel. I'm counting on this. And it looks like I was right about Kobato nearing it's conclusion. People are predicting it will end at volume 6, which gives it two more chapters. Please, CLAMP, I just ask two things; please do not ruin this series with yet another bad ending, and please let Fujimoto and Kobato be together.