Try Fighters为成功胜出第1场锦标赛预赛而举杯庆祝。正当其乐融融时，第2场赛事的对手也定下来了。对手是热门夺标队伍之一的强校，成练高职。无论对手使用什么战术，他们也能一一看穿并将其击败…仿佛战场被成练统治一般。在比赛前夕，文奈叫世海和佑马前往活动室，在那里文奈向他们展示凯旋敢达隐藏的必杀技机能…虽然Try Fighters在准备充足的情况下迎来了第2场比赛，但成练高职的3部Ez-SR既清楚对手的机体特性，也将对手的性格一一掌握，并且专攻Try Fighters的弱点！

TRY鬥士隊為了順利贏得第1場比賽而舉辦了一場小小的慶功宴。在這個愉快的氣氛中，第2場比賽的對手也排定了。對方是以冠軍相濃厚聞名的強校成練高專。據說無論使用什麼樣的戰術，該隊都能搶得先機並擊敗對手……因此人稱成練為戰場的統治者。比賽前一晚，文奈找世界和祐馬到社辦碰面，並且向他們展示致勝鋼彈作為最後王牌的秘密機能。雖然TRY鬥士隊以萬全準備迎接第2場比賽，不過成練高專的3架Ez-SR已充分掌握住對手機體特質，連模型鬥士本身的性格也瞭如指掌，更據此朝著TRY鬥士隊的弱點進攻！

選手権地区予選の第1回戦を見事に勝利し、ささやかな祝杯をあげるトライファイターズ。そんな喜びもつかの間、第2回戦の対戦相手が決定する。相手は優勝候補の一角にも名を連ねる強豪校、成練高専だ。

The Try Fighters have achieved a splendid victory in the first round of the regional qualifiers, and they celebrate with a modest toast. But their joy is short-lived as they learn who they will face in round two. Their opponent is Seiren Technical College, a veteran team which is favored to win the championship. Whatever tactics their foes try, Seiren anticipates their moves and drives them to defeat, and thus it’s said that this team rules the battlefield. The night before the match, Fumina summons Sekai and Yuuma to the club room, where they witness a hidden feature of the Winning Gundam which may be their ace in the hole. The Try Fighters face the second round with perfect poise, but Seiren’s three Ez-SR units have analyzed the characteristics of the fighters as well as their machines, and now they strike precisely at the Try Fighters’ weakest points!

Os Try Fighters conseguiram uma bela vitória na primeira rodada das qualificatórias. Sua comemoração, no entanto, não dura muito. Eles descobrem que seus oponentes são da Escola Técnica Seiren...