According to the Oricon weekly comic sales ranking of this week (4/15-4/21), the regular edition of the latest/13th volume of Hajime Isayama's Attack on Titan manga, which was released in Japan on April 9, sold 1,131,000 copies in its first week, while the limited edition containing OVA sold 270,000 units. The total is about 1,401,000. As reported, the volume had 2,750,000 copies for its first print run.
This is the first time for the series' regular edition tankobon to sell over 1 million copies in its first week. The first week record of the last/12th volume's regular edition was 925,000 copies, that of 11th was 764,000. It means that the series has recorded a 120% growth in recent volumes. The highest first week sales record in Japanese manga history was 2,275,000 copies by One Piece's 66th volume published in May 2012. How close Attack on Titan can reach the record?
Source: Oricon Style
(C) Hajime Isayama/Kodansha