Next month is the 20th anniversary of Touhou 8 Imperishable Night released on August 15,2004
Debut characters are:
Wriggle Nightbug
Mystia Lorelei
Keine Kamishirasawa
Tewi Inaba
Reisen Undongein Inaba aka Udonge
Eirin Yagokoro
Kaguya Houraisan
Fujiwara no Mokou