Joutenki (a Touhou LW original) refers to clear and pleasant weather. Temperaments that deal with clear weather are the most freeing temperaments, and freedom is a trait synonymous with Reimu, no matter which world she comes from. However, this Reimu does not seem to be as open or frank compared to the other Reimus. She is endowed with Wood Phase since she is as free and easygoing as the wind, and Sun Essence because of her responsibilities as the Hakurei shrine maiden. The strong and kind Wood Phase resists Water Phase, because water nourishes wood, but it is weak to Metal Phase, because metal carves wood. The alluring and arrogant Sun Essence resists the diverse and uncooperative Star Essence, but it is weak to the cooperative and indecisive Moon Essence.

The ability of Reimu Hakurei (F1) from Memory Fragment 5 (a Touhou LW original). There are many mysteries regarding the differences between this Reimu and the others because the path this Reimu has traveled is so obscure. The ability to travel between worlds belongs to dragons. They have existed since the age of chaos, back when even the gods had no names. Precisely because they have no names, the bones of nameless dragons never fossilize, even when buried underground. Instead, they keep on growing. But once humans dig them up and give them a name, the bones stop growing and become nothing more than fossils... or so a certain antique store owner once said. The Lost Word Incident gave "other worlds" a whole new meaning. They were nothing like Hell or the Lunar Capital, places Reimu and the others had already been to. Instead, they were parallel worlds where different possibilities and different fates had played out. With a dragon's ability, traveling between them should be possible. In fact, even the old other worlds, such as the Lunar Capital, were probably only reachable through passages dragons had created. That would explain how they came to exist as separate worlds, even while bordering and overlapping with reality. The Interworld Traveler Trial is a deliberately calibrated way of interpreting abilities, allowing one to acquire a dragon's power without losing oneself to excessive purification. This Reimu is a memory fragment of F1 Reimu, cut from her fate right after she completed the Interworld Traveler Trial. But fate is alive. It can't be frozen in place like a photo or a model, so she's preserved as a living, breathing individual instead. As she tries to follow her fate past the point where it was cut, she absorbs information from her surroundings and begins to stray from the path she was originally meant to take. After all, no matter how isolated the spacetime in the journal might be, there's no way she can remain unchanged. The following is a report written by a human shrine maiden blessed with good fortune. It's been a while since that strange Yukari Yakumo showed up, and it looks like she wasn't lying. The Lost Word Incident, huh? Lately, there haven't been many incidents worth mentioning, and the few that do happen are either a letdown or totally overhyped... According to Yukari, that's all because of this Lost Word Incident. Supposedly, it's already wreaking havoc in the outside world, even if Gensokyo hasn't felt its effects yet. Still, I refused to believe any of it until I saw it with my own two eyes. Now that I have, I believe it. Crossing the Great Hakurei Barrier isn't something you can just do on a whim. It takes special arrangements. Then again, nobody in their right mind would want to go out there, so I never really worry about it. But this time was different. What finally convinced me was hearing about it from Sumireko herself. Beyond the barrier, we found an outside world that was completely unrecognizable. I couldn't believe my eyes the last time I saw it, but that was nothing compared to this. I wonder if the humans of the outside world are OK. The first time you see the sea, it just looks like a really big puddle. But in reality, it makes up most of the Earth's surface, and there's actually less land than water. The outside world is much the same compared to Gensokyo, except the difference in size is even greater. That used to be a useless piece of information, but now it means a lot. If the outside world, which is supposed to be so much bigger than Gensokyo, has ended up like that, there's no way Gensokyo will escape unharmed. We have to find a way to save Gensokyo, the other worlds, and the outside world too. And we have to do it while wasting as little of our remaining time as possible. But we don't even know what's causing the Lost Word Incident. We can't tell how much time, new knowledge, or technology it'll take to resolve it. We don't even know what we're lacking. That's why Yukari Yakumo told us we need to take the Interworld Traveler Trial and become interworld travelers. If we go to parallel worlds, ones no dragon has ever traveled to, we might be able to transcend the flow of time and find a solution in another fate. Truth is, that's our only option. We'll just have to take that chance. I can't think of any other way. "Tomorrow's the big day, huh, Reimu?" The oni laughed, the moon shining behind her. She was lounging around the shrine grounds in the dead of night as if she owned the place. To be fair, she really was that at home here. She's been like this ever since we first met, so much so that I can't remember a time when she wasn't. I'd considered taking Marisa, or maybe Aya or Alice, or even Remilia... There were plenty of others who could've come with me. But we were about to embark on a long journey to worlds unlike anywhere we'd been before, so I couldn't just go with whoever I got along with best. Depending on the situation, someone who was my complete opposite might be the better choice. After agonizing over it for a while, I realized overthinking things wasn't my style, so I gave up. My intuition had already chosen the one right in front of me, and she'd chosen me, too. I had a feeling that on the off chance that I ever slipped up, she'd have my back. "Honestly, I'm looking forward to this journey. It's been ages since I set off without knowing where I'd end up. I'm way too excited to sleep." Unlike humans, oni are nocturnal. I didn't need to keep her company. So I decided to head back inside and get some sleep. Starting tomorrow, we'd be talking until we were sick of it anyway. "I'm glad it's you, Reimu." The oni's voice made me pause for a second. It felt like she was calling me back. "With you by my side, I can go anywhere... as far as it takes." [The report ends here.]