Chapter 25 (Quartet Knights)

Conclusion! Then... (決着! そして...) is the 25th chapter of Tashiro Yumiya's Black Clover Side-Story: Quartet Knights.

Summary
Yami Sukehiro and Asta manage to defeat Vetto. Noelle Silva celebrates their victory, but Yami and Asta think that it is not done yet. Asta and Yami charge at Vetto to finish him off, but Rhya steps in front of them and says that it is over. Rhya uses Light Magic to blind the Magic Knights and then escapes with Vetto.

The dungeon begins collapsing. Noelle warns that they need to leave. Suddenly a sand magical worm grabs Noelle and Luck Voltia. Yami comments about how he has defeated loads of them already, and Noelle explains that the worm will not die as long as there is sand. Annoyed, Yami decides to destroy everything, so he and Asta wildly cut a path to escape since everything is going to break anyway. Luck says that he wants to do it too but Noelle tells him to act like an adult.

Elsewhere, Rhya and Vetto drop through a portal into a cave. Rhya tells Vetto that that was dangerous and would have been trouble had they stayed there. Frustrated, Vetto refuses to forgive those humans and to believe that he could be defeated by humans like Noelle and Yami. Rhya notes that Vetto is losing his mind and blames him being a copy. Rhya reflects on how the copy's strength is nowhere near the original's, and is still alarmed that the humans where able to fight him. Rhya tells Vetto to rest for a bit to restore his mana and adds that Licht and Karna will be back soon and then they will enter the final stage.

Back at the sand dungeon, Asta and Yami break through the sand and escape the dungeon with everyone. Yami tells Asta that he understand the Ki thing now, and that he knew about it but did not understand it until now. Asta comments about how he had learned from Captain Yami, and Yami says that he is amazing. While Luck is buried in the sand, Noelle thinks about how she thought that she was going to die. Yami says that he will become even stronger. Noelle wonders why Yami and Asta have so much energy. Luck says that the stone table was destroyed again and what they did was completely useless. Asta asks why Luck can smile while saying that. Yami comments that the stone tablet was destroyed again and that maybe next time that succeed, and Asta comments about how they could not do anything. Noelle sees this and thinks about how Yami and Asta look happy.

Suddenly Asta's communication magic tool starts to ring and he picks it up. Yami asks what that is, so Noelle explains that the device allows people to contact others who are far away. Asta announces that Mimosa Vermillion is calling him, which shocks Noelle. Mimosa requests Asta to save Yuno and explains that they went to the snow dungeon and met Karna. Mimosa managed to get away, but Yuno and Klaus Lunettes are being controlled by Karna. Before Mimosa can answer anymore of Asta's questions, she collapses from exhaustion.