Novel of the second Gintama movie, written by Oosaki Tomohito, the same author of Ginpachi-sensei. What would have happened if the Shiroyasha never existed? Edo is thrown to chaos by a mysterious cause. Sakata Gintoki, now lives in a world where the future has changed, without him. What has happened to the Yorozuya? Gintoki, who is now a ghost...