Unlock the following characters by performing the corresponding tasks:

Character       How to unlock
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Hime         - Play through Arcade Mode as any character from SUGURI.
               (Suguri, Iru, Saki, Kae or Kyoko) without using a continue
               to unlock Hime.
Star Breaker - Play through Arcade Mode as any character from sora 
               (Sora, Alte, Tsih, Sham or Nath) without using a continue 
               to unlock Star Breaker.
Sumika       - Play through Story Mode on Normal or higher with all other
               characters without using continues. Note: You must update 
               Acceleration of SUGURI 2 to v1.3 or higher in order to 
               play Story Mode and unlock her.