The Goddess of Night, called down by Schwartz's skill, explains the mystery behind Jinguuji's arrival in this world. Tachibana and Jinguuji leave the Mercs territory, heading for the royal capital. Along the way, they stop by a peculiar village where squid is adored. There, as part of the preparations for a strange ceremony, Tachibana is kidnapped as a sacrifice...?!

In a strange village where the people worship a giant squid as a god, Jinguuji searches for Tachibana, who has been abducted to become a sacrifice, and catches sight of Rue, the elven Premier, who had also been a candidate for the sacrifice. Jinguuji forms an agreement with Rue for the purposes of defeating the giant squid with its demands for beautiful maidens, and suggests a bold plan to accomplish the feat.

Leaving the squid-worshipping village behind them, Tachibana and Jinguuji head for the royal capital. Shen, a suspicious-seeming trader they met in the village, accompanies them. On the road, the trader's motives for following Jinguuji are revealed. The group arrives in the royal capital, Ishurna, thanks to Shen's guidance, and heads for the temple of the Goddess of Love and Beauty to gather information on the Demon Lord, but once there, an unbelievable sight unfolds before them.

Guided by Mouria of Ishurna's Intelligence Department, Tachibana and Jinguuji are granted an audience with the king. Thanks to Tachibana's Charm, the two gain the king's support. Then, Tachibana and Jinguuji end up having a falling out in the middle of a banquet. After ducking out of the hall, Tachibana meets a beautiful young woman who meets his every ideal, but the encounter gets him wrapped up in a huge uproar.

Under the leadership of Ygraine, King Ishurna's daughter, the people have turned into a mob. Tachibana has joined the rebel army after being swept up in everything by Ygraine, Meanwhile, the shadow of the Demon King's army sneaks in, unnoticed. At the same time, Schwartz and Lucius, who have been called in by the king to gain control over the rebel army, head out to intercept the mob closing in on the royal capital, but...

Schwartz's great efforts have led to the devastation of the rebel army. Kalm, one of the Demon Lord army's top officers, has been guiding things from shadows. In order to keep her operation moving, she uses Ygraine and Tachibana to activate an ancient weapon called Mehpon. Even as they falter in the face of the weapon's overwhelming power, Jinguuji and Schwartz set out to subdue it. Then Tachibana, who is being manipulated by the Demon Lord's forces, uses Mehpon to attack them...