While Investigating An Undersea Volcanic Eruption Sakamoto And Ai From The Space Development Agency Recovered The Splashdown Of A Mars Exploration Probe They Are Suddenly Attack By A Kaiju Called Namegon Then Namegon Is Attack Tokyo So Mikey Is Transform Into Ultraman Rainbow And Fight Against Namegon Then He Is Use Rainbow Slash Try To Defeat But Fail Because Namegon Shell Is To Strong So Namegon Escape Then Mikey Is Transform Back Into Human And Go To Martial Arts Class Next He Is Go To School At School He Is Learn About Pressure In Class At Lunch Time Suddenly Principal Announce School Is Over Because Kaiju Attack Nearby City So Mikey Is Transform Into Ultraman Rainbow And Go To Fight Against Namegon This Time Use A New Technique Called Rainbow That Pierc Through Darkness By Using Double Edge Spear That Cover With Rainbow Color Enery Come From Inside His Forehead Crystal That He Is Wield In Right Hand Then Namegon Is Got Defeat
