For last year’s awards, Nakaba Suzuki’s The Seven Deadly Sins and Wataru Watanabe’s Yowamushi Pedal manga won the Best Shounen Manga award, Tsunami Umino’s Nigeru wa Haji da ga Yaku ni Tatsu manga won the Best Shoujo Manga award, and Tsutomu Nihei’s Knights of Sidonia manga won the Best General Manga award.
defeated other nominees: Seraph of the End, Noragami, and My Hero Academia. defeated other nominees: Kurosaki-kun no Iinari ni Nante Naranai, Say “I love you”., Nijiiro Days, and First Love Monster.
Well, those certainly are huge upsets given the popularity of some of the other nominees like ERASED and Seraph of the End.