エックスレックスがなぜ人を食べるのか？
その理由は、人への好奇心。
食べた人の記憶を覗くことができる習性から、
気になった人を食べることで、その好奇心を満たしていたのだ。
その真意に気づくことができた宝太郎は、
エックスレックスをもガッチャ！
冥黒の三姉妹に襲われるりんねと間辺親子のもとへ、
スーパーガッチャードクロスエックスレックスで駆け付ける！
しかし、三姉妹の猛攻に、ガッチャードは防戦。
アトロポスは錬金術が使えないりんねを再びいたぶりにかかる。
そんな中、間辺親子にも魔の手が・・・！
このままじゃまずい！！
その時、宝太郎の耳に届くみんなの声。
みんなの思いをパワーに変えて、みんなを守ってガッチャード！
ついに、りんねも反撃の時・・・！？
Why do X-Rex eat people? The reason is curiosity about people. Because of their ability to see into the memories of the people they ate, they satisfied their curiosity by eating the people they were interested in. Houtarou, who was able to realize the true meaning, got X-Rex as well! Use the Super Gatchard Cross X-Rex to rush to Rinne and the Mabe family who are being attacked by the Three Dark Sisters! However, Gatchard defends himself against the onslaught of the three sisters. Atropos tries again to torture Rinne, who cannot use alchemy. Meanwhile, the Mabe family is also under the influence of evil...! It's bad if it stays like this! ! At that moment, everyone's voices reached Houtarou's ears. Turn everyone's thoughts into power, protect everyone, and Gatchard! Finally, it's time for Rinne to fight back...! ?
