I'm dating the Phantom Six Man (~Tetsuya x OC~) [Slow Update]

Akira Higurashi, a 1st year student in Seirin, had liked Kuroko Tetsuya ever since she watched the tryout for Seirin High basketball team..until one day she earned enough courage to confess and hopefully it was worth it..everything was alright until one day a girl who totally looked like her arrived and claims to be her long lost twin sister but attends kaijo high, arrived..what will happen if her 'twin sister' tells her that she'll be her worst nightmare..and everything started to become messy..