息子ジュンの希望で謎の卵を見に訪れたヒルマ一家は、ベビーデマーガ誕生の瞬間に遭遇する。防衛隊による捕獲活動のさなか、デマーガが現れる。子の元へ歩を進める親怪獣へ、防衛隊は攻撃を開始。
避難の道中、身を挺して子を守るデマーガを複雑な心境で見つめるゲントの左腕に突如ブレーザーブレスが出現する。
Gento's son, Jun, wants to go see a newly discovered egg shown on television, so the Hiruma family decide to go on a day trip to visit it. There, they witness the birth of Baby Demaaga. In the midst of the capture operation led by the GGF, the mother Demaaga makes an appearance. The GGF launches attacks as the parent kaiju approaches its baby. While evacuating, Gento can't help but feel mixed emotions seeing Demaaga trying to protect its child. Suddenly, the Blazar Brace appears on Gento's left arm.
