For someone as Smart as Yukari to fight and attack the Lunar Capital Twice, no less, doesn't really make sense, on top of that, she was also able to enter the domain of the Lunar Capital and get Suika into the Lunar Capital to get Sake. Well there is some speculation that could make some of the Highest Tiers of Gensokyo like Yukari who had attacked the Lunar Capital twice, knowing what would have happened and it is speculated that Yukari is a lot more powerful then she shows, such as her possibily being comparable to the Guard Captains of the Lunar Capital, her joking about their power. Isn't this interesting? I'd like to hear some opinions on this? Well if it is accepted, then we might expect to see 4-A to Low 2-C Touhou Characters, That being Shiniki having created Makai which in stated to be infinite in the Windows Cannon and Multi-Solar System in the PC-98 version. This is ZUN stating that the PC-98 Era is the same as the Windows era. There are a few contradictions in the story when putting the PC-98 and Windows games side by side, but I would take reference from the latest games to consider what is canon. PC-98 games considered cano compared to the Windows series? Q: Are the PC-98 games considered canon compared to the Windows series?ZUN: It's the same world. Okay, for the longest time, we've been thinking about: 'Is the PC-98 Series cannon or not' and there are things to support this such as characters like Alice, Yuuka, from the PC-98 Cannon, but what I've discovered is the man (The Myth, the Legend) himself (ZUN) stating that the PC-98 series is the same as the Windows Era Touhou games!

Pc 98 games wiki