Like the title says. It's basically going to be Everything Wrong with Fugere Illusion: Life in Illusion in 17 Chapters or less.

Recovering from Lunarian Invasion and after-effect of Urban Legend Incident, Gensokyo decided to extend their reach to other realms. One such realm can only be accessed via technology from the future, and Yukari managed to obtain it. Now, an unlikely trio will start their journey to Aincrad in order to gather chosen players in one group. Touhou x SAO Crossover. Rated M for safety.

Two years have past since the end of the human world, and our heroes are living the life in Gensokyo, but all is not well in the virtual world as survivors cling to life in them after their bodies demise, and now our heroes come to save them...and have a lot of fun along the way. Book two in the Fugere Illusion. Republished by Omega E the Reader.

Cirno was playing at the lake when she noticed Daiyousei was missing. She searched her house for any signs of her best friend and failed to find some until a gap yokai told her that she's playing a game and she wants Cirno to play it too. What would become of Cirno in the world of Aincrad and pure sword fighting with the confusing aid of Yukari? Currently on mental block...