Rino Sashihara
Oshima has placed in the top two in the first five AKB48 general elections. In 2009 she placed second overall, losing only to Atsuko Maeda. In 2010, she received the most votes and became the center performer in the single "Heavy Rotation". In the 2011 general election, she placed second to Maeda once again. In the 2012 general election, she placed first with 108,837 votes and became the center performer in the single "Gingham Check". In the 2013 general election, she was voted second overall with 136,503 votes and lost to Rino Sashihara with 150,570 votes.