An unbelievably giant enemy is trying to reach Earth. Unaware, most human
beings are leading peaceful lives. Yuzo Hiragi, a space physicist, quickly learns of this threat and begins to develop "the god of war (Illusion)".
However, he is nearly killed by the mysterious enemy's attack, and Takeru, his grandson, takes charge of the research...

"The god of war (Illusion)" is a machine created by the energy generated from love and trust. However, it is only partially completed, and the pilots are not ready yet.
There's only one year till the enemy's attack... He has to complete the machine and find two pilots.

Will he complete the project in time? Can he save Earth...?

[From gamelexgs]