Whistle!, Volume 23: Soldier Blue (Whistle! #201-206)

Shigeki has reappeared as a member of Kansai select and now faces off against Shô and his former teammates from Tokyo. And it's immediately clear that he's improved far beyond expectation. As Shô clashes with this powerful new opponent, Tatsuya must deal with his feelings of confusion and anger at this seeming betrayal by his old friend.