Tomoko Ishii

Under the impression that they saved the World of Den-O, Tsukasa Kadoya (Kamen Rider Decade) and company begin their journey to the World of Kabuto when they are halted by Sieg who presents them a manuscript that detailed the legendary Oni Conquest with Momotaros' image on it. As this occurred, the Tarōs mysteriously vanish from the DenLiner as they are about to help Kotaro Nogami (Kamen Rider New Den‑O) out with the true threat to their world.

When his video game prowess is discovered by the International Network of Excel-Science and Technology — or I.N.E.T. — high school student Kenta Date is brought in to lend his expertise to their mysterious research. Meanwhile, four classmates show up, wanting to know more about the I.N.E.T. facility. Their experience will change their lives forever, as I.N.E.T. survives an attack by the nefarious Dr. Hinelar and an army from another dimension determined to conquer our reality! Now, it's up to Kenta and his four classmates to "install Megaranger" and become the team of heroes their video games prepared them to be!