Zyuden Sentai Kyoryuger x Male Reader

Long ago, in the time of the dinosaurs, the Earth was invaded by an alien menace known as Dark Species Deboth, the leader of an invading army. On the verge of extinction, some of the dinosaurs are transformed into Zyudenryu and seal Deboth and his forces in ice.

Now, in the modern world, the Deboth Army has thawed and now intends to commence the mass extinction of humanity while thawing its still-frozen leader. But having prepared for it, Wise God Torin gathers the only people capable of helping the Zyudenryu stop the Deboth Army and a Deboth Kyoryuger who wants nothing but revenge.