[Proto]

The Earth faces great danger as several visitors from a mirror dimension begin their invasion of Earth. All of the militaries around the world unite to fight against the Earth's threats at the hands of monsters that the Japanese dubbed "Kaiju" to prevent this from happening. As time passes by, the danger the world faces grows more robust. The people of Earth know that their final days are nigh until one day, a mysterious creature as massive as the "Kaiju" appears and begins to fight against the titular monsters invading the Earth. Who is this creature, and what is its goal in protecting Earth from these monstrosities? The people call him Proto. Is he here on Earth as an ally or as an enemy?