Forbidden first love...?

Yanma Gast / Tombo Ohger has wandered into the world of Tokusou Sentai Dekaranger?! As soon as he saw Marika "Jasmine" Hiwatari/Deka Yellow, and met her for the first time, he said, "This is my first love. I'll do anything to protect you!" Unlike the previous Yanma Gast, there's something strange about him... what is the truth behind it?