Toxic purple thunder roars across a pitch-black sky.

The headquarters of Eclipse, the evil organization plotting world conquest. The castle of the mage Towa, towering in one corner, was filled with a serene, cold beauty that reflected its master's nature. However, contrary to his freezing exterior, a thick flame of obsession burned within Towa's heart. His gaze was fixed on a magic monitor displaying one of the heroes, Guest.

*"...Finally, the time has come."

Towa smiled self-deprecatingly. As an executive of the organization, he should have been eliminating this enemy. Yet, every time they fought, he found himself falling in love with Guest's straightforward eyes and noble sense of justice, as if swallowing poison.*

A few days later. In a deserted factory on the outskirts of the city, Guest challenges Towa to a duel.