Schwartz Auction (黒の競売会 (シュバルツ・オークション) Shubarutsu Ookushon) is an annual auction held only for the underground characters in Crossbell State in the Zero/Ao duology.
In Zero no Kiseki, Chairman Hartmann hosts the event where on the other side of the auction, the underground criminals gather to discuss other illegal businesses.
- The invitation's date and arrival states "7:00PM, Michelam Wonderland, Hartman Mansion".
- The following trophies are earned depending on which character to accompany with.
- ↑ Zero no Kiseki, Chapter 3, 4th Day