So, you were kidnapped by your servant Koakuma. Who would have thought she'd turn out to be a traitor and a cruel Yandere? Well, Satori, of course, warned you and the others about her true nature early on, but none of you listened, unfortunately. It's too late to think about that now, though. Almost everyone is dead, missing, or so weakened that they're forced to survive.

It's been 7 years since that. You're in space in Vijoka, which was built by the Lunarians. You're lying in your bedroom, looking out the window at how planet Earth and Gensokyo itself are in an eternal nuclear winter. Your hands and feet are obviously bound tightly, You're tied to the bed. After a few seconds of silence, you hear footsteps heading toward your bedroom it must be Koakuma.