It's 1972, And Godzilla Has Been Hibernating In Mount Mihara. The Monster's Cells, Called "G-Cells", Have Been Secretly Delivered To The Saradia Institute Of Technology And Science. They Are Merged With Genetically Modified Plants In Hopes Of Transforming The Saradia's (As Well As Egypt, And The Middle East) Deserts Into Fertile land And Ending The Country's Economic Dependence On Oil Wells. Dr. Genshiro Shiragami And His 16 Year Old Daughter, Erika, Assist To Aid The Project. But However, A Terrorist Bombing By Eco-Terrorist Organization "Apex" Destroys The Institute's Laboratory, Killing Erika. A Few Weeks After The Attacks, Shiragami Has Returned To Japan, Grief Stricken.
By October, Shiragami Attempts To Do The Unthinkable, Merge Erika's Cells, The G-Cells, And The The Cells Of A Rose To Preserve The Soul Of His Beloved Daughter. However An Eruption Of Mount Mihara Causes Tremors To Appear Across The Country, Including Shiragami's House, Badly Damaging The Roses. One Night, Apex And Saradian Agents Break Into Shiragami's House, As They Search For The Roses, One Apex Agent's Arm Is Found, Severed. Then, They Hear Hear A Other Worldly Hiss. The Agents Panic, And Are Suddenly Attacked By A Plant-Like Creature. It Escapes To Lake Ashi, Where Gaira Attacked The Fisherman In 1969. The Next Day, A Humongous Rose Is Shown To The World, And People Observe It. Shiragami Calls It "Biollante", Named After A Plant Goddess In Norse Mythology.
Apex Agents Plant Explosives Around Mount Mihara In A Attempt To Awaken Godzilla. They Then Blackmail The Diet Of Japan Warning That If They Don't Trade The G-Cells, They Will Awaken The Monster. The JSDF Attempt To Trade, But Apex CEO Alan Jonah Thwarts The Attempt And Escapes With The Cells. The Bombs Explode And A Familiar Roar Is Heard, And Godzilla Rises From Mount Mihara. Upon Hearing Godzilla's Roar, Biollante Rears Her Head To The Sky, And A Erie Sound Of Calling Fills The Ears Of Many. Biollante Is Calling Out To Godzilla. Later At Night, Godzilla And Biollante Meet And A Lengthy Battle Occurs. Biollante Tangles Godzilla With Her Vines, While Godzilla Uses His Atomic Breath To Cut Some Off. Biollante Then Borrows Underground In Order To Retreat. Later That Night, Godzilla Attacks Osaka And Many Neighboring Cities, Sparking An Evacuation.
After The Rampage, Godzilla Enters The Wilderness Near Mount Fuji. Then, He Hears Tremors. And A New Form Of Biollante Emerges From The Ground. They Battle Again, This Time, Biollante Puts The Kaiju In A Better And Longer, Harder Fight. 2 Hours Of Fighting Later, And Biollante Spews An Acidic Sap At Godzilla, And Godzilla Fires His Atomic Breath At Biollante For One Last Time Before Retreating. Biollante Then Turns Into A Sparkling Yellow Ash, And Many Who Observed The Long Battle Gasp In Amazement. Biollante Would Eventually Return In The Near Future.
(Sorry If This Is Kinda Rushed)