With a leg missing, Mercury staggers through a hallway using the wall to support himself. Caren tells him he has three opponents left, but he's almost finished. He runs into Ushiwakamaru. She worriedly tries to help him, but he freaks out and demands to know why she acts so weird around him. She steels herself and admits she is his sister. Confused, he says he doesn't have a sister, but she says her father is Marcus Black, shocking him. When they were children, Marcus took him away. Their mother is dead, but she is here for him.
He tells her to shut up, but he gets a headache and a flashback of when they were small. She was crying when she saw he had bruises on his legs. He told her not to cry; their father is tough on him because he is a boy, but he is sure he'll train easier with her. He gave her a crown of flowers and promised to be there for her. The flashback ends and she asks if he remembers now, but before he can answer, they hear guitar music. Then the wall explodes and a giant skeletal hand grabs him and carries him away. She screams and gives chase.
Weiss hears the crash and investigates. She comes to a rocky arena, but is frozen in fear when she sees a gigantic crimson skeleton. Nobunaga, her hair turned red, plays a guitar, which empowers the skeleton with flames. Ushi jumps on the hand and tries to free Mercury. Nobu makes the skeleton slam them into the ground, making them scream in agony. The skeleton throws a punch, but Ushi throws Mercury out of the way. He watches in horror as Ushi takes the hit and is sent through a boulder. She is eliminated and disappears. Nobu tries to find where Mercury landed, but sees Weiss, still frozen in fear. She grins and says she wanted to save Weiss for last, but oh well.
Shakespeare is writing a book when Semiramis storms in, followed by Ruby. Semiramis calls him out on exploiting Weiss' fear. He retorts that he didn't tell Nobunaga about her fear of skeletons and he didn't know Nobunaga could summon a skeleton. Nonetheless, Weiss and Nobu's rivalry has inspired his latest story. He offers the book to her, but she disdainfully pours acid on it, pissing him off. Ruby says she had no idea Weiss was afraid of skeletons, then suggests using a Command Spell to help her get over it. Shakespeare says that won't work, as it can't change personalities. He used his to make Nobunaga calm down as she is a Berserker, but that is its limit. He suggests Semiramis use it to take manual control of Weiss, but she says she would never forgive her if she did that.
Nobu laughs and says she learned how to summon the skeleton just for her. Weiss is shocked that she can summon, and Nobu mocks her for being unable to. The skeleton throws a punch, but Weiss dodges it and attacks Nobu. Shocked, Nobu blocks her sword strikes with her guitar and says she was scared stiff a moment ago. Weiss says she is scared, but she hates her more. The skeleton attacks again and Weiss is forced to run. Mercury suddenly blasts Nobu from behind with a wind blast to distract her, then hides behind a boulder. Weiss sends a wave of icicles at Nobu, but she regains her bearings and makes the skeleton block it. The skeleton erupts with flames which turns the stone into lava and instantly evaporates the ice, forcing Mercury to jump away from the intense heat.
Ruby tells Semiramis she has an idea. Semiramis uses a Command Spell to heal Weiss and tells her Ruby's idea. She sighs and says only Ruby could come up with such a plan. Weiss makes a huge summoning Glyph that covers the entire floor. Nobu mocks her and says she can't do it, but is horrified when the skeleton suddenly gets covered with ice that doesn't melt. She plays her guitar harder to make the skeleton break free, but it doesn't work. She drops her guitar and launches a fireball at Weiss, but it is blocked. Weiss had used the skeleton as the base for her summon, a giant armored knight with a huge sword.
The knight attacks Nobu, who dodges the sword, only to get punched into the wall. Weiss says she shouldn't have insulted her abilities. Nobu tries to fight back with fireballs, but gets punched again. Her hair changes back to black. Ruby cheers and says Weiss is winning, but Semiramis points out even with her boost, Weiss is almost out of energy from the summon. Nobu summons her rifles and suddenly shoots her guitar, destroying it. Weiss gets confused, then the knight begins to fall over. Nobu explains that the guitar maintained the skeleton's existence, so without it, the knight lost its framework. Weiss panics and explains that the knight had a lot of stored energy inside it, and now it has become unstable. She tries to make an ice shield, but she is out of energy. The knight explodes.
Back in the room, the screen turns white, the Ruby, Semiramis, and Shakespeare hear and feel a massive explosion and blast wave. The monitor shows over a quarter of the Hanging Gardens of Babylon have been destroyed, enraging Semiramis. Nobunaga teleports in, unconscious with her clothes tattered, eliminated. Ruby is amused to find she held her hat in her arms to safeguard it. Ruby runs to Semiramis' room to find Weiss has also been eliminated. Barely able to move, she cries and apologizes for losing. Ruby says she did great, then wonders who won and looks at the monitor. It turns out Mercury, bleeding and barely conscious, had also almost fallen out of the Hanging Gardens, but his remaining leg got caught on a pipe, saving him. Caren tells him he was very lucky and thanks him for granting her wish. He whispers, "Sis..." before passing out.
The winner of Round Two is Assassin: Mercury Black.
