Hikari Kimishima is the 9th member of AKB0048 to take up the name of Yuuko Ooshima. She is a former member of the 72nd generation of understudies.

Yuuko Ooshima is AKB48's second most popular member and is an iconic character like Maeda Atsuko. She belongs to the second generation of AKB48 and has a huge role as Team K center. She stood out among the members due to her upbeat and funny personality of making weird faces as well as her notorious "30-year-old man" mindset of wanting to touch the members' boobs and butts. In 2009, she won the center of AKB48 through popular vote, beating Maeda Atsuko.

Distinguished by her quick and exaggerated dance moves. Open and friendly with anyone. Dynamic in battle, and as agile as a squirrel. When she’s among the other members, she engages in sexual harassment like a perverted old man, but it’s just how she shows her affection.

In episode 8 of AKB0048 Second Stage: