Valkyria (the Rumored powerful witch) breaks out of the lab to seek for Kuroha while wreaking havoc on her path. Another runnaway witch named Hatsune with the power of recover (healing wounds) joins the group and (kind of) falls for Ryouta. Brighter news about the creation of the drugs came in, but only shortens the time to 1 month. During a coincidential moment Ryouta found out that Kuroha is indeed Kuroneko from the past, yet the girl cannot remember anything but he's still fine with it. Before they get to decide anything, the guys are ambushed by Valkyria and her supervisor - Ichijiku. In order to protect Kuroneko, Ryouta takes a fatal blow from Valkyria, leaving everyone shocked. In the final visions before death the figure of Nanami appears and tell him the secret behind the Upper Button of the Harnest, which will activates the full power of the magic users with a little chance of 1%. Just in the nick of time, the new girl Hatsune reveal to have another ability to heal people with the cost of her life. She sacrificed enough power to save Ryouta, almost dead but still enough for her to heal herself.
Before Valkyria could destroy the group, the secret contacts behind the Tablet appeared to seemingly save the group at the time. Valkyria and Ichijiku escaped, but not before taking Kotori hostage. The contacts, calling themselves Witch Hunters, suddenly turn hostile to the group, trying to kill the girls. They are actually ex-workers at the Lab who witnessed the cruelty of the Organization and abandoned them, creating the fire incident to let the B classes escape. They reveal the fact that the girls are actually under controlled and managed by an alien parasite-like creature called Drasils, which is the source of their energy and also the reason why their memories are lost, in short, the girls were never humans. This creature feeds on the Death Resistance drug, grows steadily inside and one day will devour their host, then humankind. In order to do that, the witch hunters need to kill the hosts and eliminate the Drasils along with them ..
Unsatisfied with how things have to end, Murakami Ryouta arranged a trade with the Witch Hunters for answers, with the cylinder of "alien egg" as the price. He is then revealed that the reason Kotori is the only one being kidnapped is that because the Drasil inside Kotori is a "Gurane" (grenade) type and has the power to destroy the entire world, and in order for that not to happen soon, Ichijiku has to move the monster into another body. Understood the situation and after a bit of misunderstanding, the Witch hunters let Murakami go, but later ask them to join in finding Ichijiku's wherabouts. To do so, they asked Kasumi to hacked into the Laboratory's system to search for Ichijiku's data, but she had to encountered an AAA hacker from the lab itself. This time Kasumi revealed that she has A level power, but refused to use them to kill people at the test, which is why she's put to rank B. She successfully gathered Ichijiku's location and the guys once again has a plan to infiltrate his manor...
Haunted by the image of Murakami's almost dying during the ambush, Kuroha tricked him into the Telescope building, knocked him out and without him, infiltrate Ichijiu's house with Hatsune and Kazumi. The plan failed with the death of Kazumi and Hatsune under the hands of Valkyria (seemingly) but before getting killed by Ichijiku, Kuroha was saved by Ryouta who then scolded her for not being obedient. The guys ran down to the room where Kotori was kept. Due to being ejected with a certain type of drug, Kotori cannot move now as the other 2 try to escort her out. But it was not successful as Ichijiku stopped them on their way out. Valkyria also revealed to have murdered Hatsune and Kasumi, which puts Kotori on a rage and moved on her own. But as the moment she begins to move, the Grenade inside her begins to grow quickly and to put a stop to it, Ryouta has no choice but to eject Kotori. During the final conversations, it is revealed that Kotori is actually Ichijiku's sister who died with unknown reasons, and in order to revive the memories of his sister Ichijiku had to do horrible things that led to this day.
The death of Kotori let Ryouta and Kuroha burst in tears while Ichijiku, losing his sister, starts to reflect on what he had done. The witch hunters arrived and planned a surprise attack on Valkyria, but failed because Ichijiku served as the shield for Valkyria. Furious after witnessing Ichijiku's death, Valkyria ignitiated her "Anti matter" power and destroyed a mass area around her.
Luckily survived the anti matter, Ryouta and Kuroha planned to assasinate Valkyria, Kuroha served as the bait while Ryouta sneaks from behind to stab a fatal blow to her neck (according to what he learned from a US military book). Unfortunately, their plan was foiled and Ryouta was forced to step out of the hiding spot. As Valkyria laughs at the inferior Ryouta holding a knife, Ryouta threw it on the ground behind Valkyria and suddenly Kana (now can move) appeared out of nowhere, delivered the fatal blow to Valkyria's neck as planned.
Just when they are about to celebrate the victory, the surviving Valkyria shot out a beam towards Ryouta but Kuroha repaid his favor by acting as his shield. Despair but still remember what Manami said before, Ryouta pushed the upper button on Kuroha's Harnest and at that very moment, Kuroha's strength was revived and as Manami said, Kuroha's true power surpasses that of Valkyria herself. Along with that, her memory as Kuroneko also returned as she meets her childhood friend again after 10 years ... Now with brand new power, Kuroneko must face her sister - Valkyria - to defend what she loves.
And there you go guys, what happened so far. Now prepare for the upcoming final battle and also a Very Special Moment in chapter 98