Ep 8. First Extermination

In Seraph of the End: Vampire Reign season 1 episode 8, titled "First Extermination," the humans prepare for their first major attack on the vampires. Yu and his squadmates are assigned to support the main force with a diversionary tactic. The team has to get past the vampires guarding an underground tunnel that leads to the vampire capital.

Yu and the team head underground, but they run into a group of vampires who are prepared for them. The vampires include one named Crowley Eusford, who is particularly powerful and who Yu recognizes from his past. The two begin to fight, but Yu is outmatched by Crowley's strength and speed.

Meanwhile, the main attack on the vampire city has begun, and the humans are making progress. But they soon discover that the vampires have a dangerous weapon - a powerful demon that can take out entire squads at once. The humans are forced to retreat and regroup.

Back in the underground escape route, Yu continues his fight against Crowley. Yu remembers Crowley as a human scientist who experimented on children, including Yu himself. Yu is determined to defeat Crowley and get revenge for what he did to him and his comrades.

The fight between Yu and Crowley is intense and destructive, with both combatants pushing themselves to their limits. However, Yu's friends are able to distract Crowley long enough for Yu to land a powerful blow. Crowley is defeated, but he disappears before Yu can finish him off.

With the diversionary tactic successful, the main force of humans is able to get into the vampire city. But they are quickly met with fierce resistance from the remaining vampires. Meanwhile, Yu and his squadmates try to find their way out of the underground tunnel, which has been rigged with explosives by the vampires.

In the end, the humans are able to destroy the demon weapon and retreat from the vampire city with their objectives accomplished. But the experience has taken a toll on Yu and his friends, who must contend with the harsh reality of the war they are fighting and the painful memories of their past.

Overall, "First Extermination" is an action-packed and emotionally charged episode that raises the stakes for the series and sets the stage for future conflicts. With strong character development, intense fight scenes, and an intriguing plot, it's a must-see for fans of the show and newcomers alike.