[X] Feed. With so many people down there, you'll definitely be able to restore the energy you lost.
You stare at the humans inside, and a lot of the ones who have a line of sight to you are looking up at you as well, probably drawn by Laevateinn's flames. Your skin burns in the sunlight, and you extend Laevateinn to forty meters before swinging the massive burning sword through the corner of the building. Glass explodes, the stone beneath your feet bubbles and shatters, and you can hear the screams of burning humans. You sweep the blade along beneath you, carving a massive wound through the front of the building, then store your gift and descend.
Being inside a massive glass building doesn't shield you much from the sun, but you don't mind. You're in a frenzy, and you dive straight down, punching through an unshattered floor to reach the quivering prey beneath. Most of the humans are on the floor, shrieking in terror, but one of them - he's larger than the others, and you try to remember if that means something - charges at you, yelling. As his shoulder impacts you, you leap into the air, hugging him; of course, he bursts, but more importantly, your teeth are now at his throat, and you tear it out, letting his blood fountain over your face, run over your still-imperfect flesh. All too soon, though, the blood stops flowing, and you toss his corpse to the side. You smile at the cowering humans, reveling in their terror, and begin feeding. They're small humans, though, and you don't get a lot of blood. Fortunately, though, there are a lot of rooms around, so there are lots of humans!
You giggle as you strike out against another group, then another, and another, feeding as you can, but also just enjoying the mayhem and destruction you cause. Part of you - a small part, unable to do anything - wonders how Remilia would react if she knew what you were doing. You pause and cackle, and the terrified human at your feet backs away, eyes filled with terror. You grin down at him. "Do you think she'd be disappointed in me? It's all your fault, you know - if you hadn't sent them after me, I wouldn't be here right now." You stroke the side of his face; he's so frightened he doesn't even move. You giggle again and stand up.
You float down the hallway, humming one of Remilia's songs to yourself. You wonder how she's doing, whether they've found your note yet, and if you'll be punished for missing any lessons. That last thought makes you break out in laughter again - here you are, enjoying yourself fully for the first time in decades at least, and you're wondering if your sister is going to lecture you for missing some lessons! Maybe you can make her angry again, make her take over Gensokyo and build an army to conquer this place. You stop and look out the building - yes, a carriage just appeared out of nowhere in the courtyard! Something huge comes flying out of it, and you leap a few meters to the side ....
The explosion catches you off-guard, the pressure wave throwing you farther away, but you recover quickly. You pull out another dress and slip it on, since the one you were wearing has pretty much stopped existing - and just as you finish, your sister is lunging at you. But they already pulled this trick on you once, and you don't even hesitate. You know that isn't Remilia, and you hurl yourself forward. You'd only intended to decapitate the witch, but you feel the Soul Gem shatter beneath your hand. Not a smart place to put it, anyway. Then you see her, the girl who might have been your maid, and you wave cheerfully at her. She's crying - maybe she finds the destruction too beautiful? Then you see the gun in her hand, and the other girl, who seems to be talking to that white creature ... and then there's a flash of light, a massive surge of power, that same power! The same power from before, and she knew! You lunge forward, hurling yourself at the witches, but reality tears itself apart around you and sucks you away. Something pushes you back from the rift, and then it closes.
Where do you want to go?
[ ] C - It's bright and sunny, and you can see a lot of white buildings with huge windows.
[ ] H - It's an old-time town (and you're five centuries old, so that's saying something!). It looks kinda like someone blew it up already, though. The sun hasn't quite begun to set just yet, but it should soon.
[ ] K - It's dark and underground, but it looks like there's some kind of ruined city! Everything is thick and blocky.
[ ] T - A tiny room with a shiny ... door? It's split down the middle and is made of metal. It's an elevator with a metal door.
Well, that was that, I suppose. Does anyone want a post detailing where things could have gone differently and how? Does anyone have any specific questions regarding events?