明日、世界が滅びるかもなので、本日は帰りません。 = The World Might End Tomorrow,So I Won't Go Home Today.
あした せかい が ほろびる かも なので ほんじつ わ かえりません
est. Rough estimate based on volume count, reprints and magazine — not an official figure
External databases: MADB
How to compare editions, collected volumes and ISBNs / Sources, updates and corrections