Lau Hiu Ching, also known as Koharu, is a Hong Kongese idol singer based in Taiwan. She is a member of AKB48 Team TP (formerly known as TPE48), of which she is the leader of Unit Sakura (one of the team's three sub-groups). She is also a member of an unofficial four-piece group 'The Pi22as' (a parody of AKB48 Team TP's sub-unit/band 'The Puzzle5').

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