Episode 12

A Life`s End (命の果てには, Inochi no Hate ni wa) is the 12th episode of Gibiate anime series.

Synopsis
Sensui and Kenroku struggle against Dr. Yoshinaga, who has changed dramatically. They fight to the death with the thoughts of their friends who have died so far! All is revealed and the story comes to a shocking end...

Summary
Dr. Yoshinaga transforms a second time. He explains that the moment the Sun went down, the heat that was making his cells feel like they were exploding vanished. Kenroku tells Sensui he will create and opening and engages Yoshinaga in a fight. He wraps his thread around his neck, but the thread breaks. Yoshinaga starts to keep up with Kenroku's movements and bite-breaks his kunai. He hits Kenroku with his tail, but Sensui joins the battle and saves him. However as he fights him, his katana Suigetsumaru, breaks. Sensui attempts to fight him with his other swords, but his attacks has no effect. Kathleen then comes back and shoots Yoshinaga with a taser, explaining that Yoshinaga had tough her that electrical attacks work great on Gibia as they have zero electrical resistance. Yoshinaga still manages to pull the taser out of Kathleen's hands, commenting that this was effective attack. Yoshinaga transforms into a form similar to Ayame's Gibia form. He then explains that the time travel as a result of modulating the positive and negative effects of he bringing the Gibia virus there. He was operating his spaceship with brainwaves and the remnants of the ship orbited Earth before they fall as comets. Kathleen made a wish to those comets and the ship used its final power to grant her wish, summoning the three men from the past. Kathleen recalls the day and realizes she is the reason Yukinojyo died, and Kenroku and Sensui are suffering. Yoshinaga explains that seeing their strength, he though it may be destiny and planned to use them to bring intelligence to Meteora and return to his planet.

Renjiro comes and gives his katana to Sensui, explaining it doesn't have a name, but its a good sword and asks Sensui to avenge Ayame. He tells Kathleen to live for Ayame's sake and then charges at Yoshinaga, blaming him for his daughter's death. Yoshinaga stings him, wondering what he was thinking. Renjiro explains he wanted to get close, revealing dynamites around his waist. As the explosion occurs, Yoshinaga is injured. Using the chance, Sensui throws his sword, piercing Yoshinaga in the forehead and then using Renjiro's katana, he cuts Yoshinaga's head.

With Yoshinaga dead, other Gibia are coming and Kenroku and Kathleen board a boat. Sensui shows that he got stung and can't come with them. They bid farewell and Kathleen gives him a tracking device, telling him to find them one day. As they leave, Kenroku tells Kathleen that Sensui had always kept his promises, so he believes he won't die. Sensui then heads into battle against the incoming wave of Gibia.

Characters

 * Kathleen Funada
 * Sensui Kanzaki
 * Kenroku Sanada
 * Dr. Yoshinaga
 * Renjiro Hatonami