According to the official website, 3 Gatsu no Lion has won the Manga Taishō (Cartoon Grand Prize) 2011. The grand prize winner was chosen by the votes of book store keepers from manga which have been published up to eighth volumes.
The results of the final vote by the judges
*1, 75 points 3 Gatsu no Lion
*2, 55 points Otoyomegatari
*3, 51 points I am a Hero
*4, 50 points Hana no Zubora Meshi
*5, 47 points Shitsuren Chocolatier
*6, 42 points Sayonara mo Iwazu ni
*7, 41 points Shingeki no Kyojin
*8, 38 points Kokkoku
*9, 36 points Mashiro no Oto
10, 35 points Drifters
10, 35 points Don’t Cry, Girl
12, 27 points Omoni Naiteimasu
13, 21 points SARU
Source: Manga Taisho
