Hiraizumi is the coach of the hugely successful Tokyo Victory. He refused to take Tatsumi lightly, stating that he was a man who would go for your throat as soon as you let down your guard. However, he was still confident of beating ETU. Tatsumi referred to him as a dandy. 

A truly great coach makes the game of soccer interesting! Tatsumi Takeshi is 35 and has spent the last few years coaching in England before being brought back to Japan to coach his old team. His favorite pastime? Causing giant upsets—aka Giant Killing!
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(Source: Kodansha USA)

East Tokyo United, ETU, has been struggling in Japan's top football league for a few years.  It has taken everything they have just to avoid relegation. To make matters even worse, the fans are starting to abandon the team.<br><br>
In an effort to improve their performance, ETU has hired a new coach, the slightly eccentric Tatsumi Takeshi.  Tatsumi, who was considered a great football player when he was younger, abandoned the team years before but has proven himself as the manager of one of England's lower division amateur teams.  The task won't be easy, the teams East Tokyo United is pitted against have bigger budgets and better players.  However, Tatsumi is an expert at Giant Killing.