As Tsuna, his Guardians, Lal Mirch, and Bianchi rush to the Millefiore base, Tsuna recalls Bianchi's lesson. In the lesson, she stated that it was located underground, and that the best spot to attack would be duct inside the generator room inside the shopping mall's parking lot. Giannini then introduces a cover for their Vongola Rings so that the enemy wouldn't detect them. Reborn gives them clothing that Leon wove that was resistant to Dying Will Flames. As the Vongola enter, Bianchi stays behind, telling them that she would take care of Kyoko, Haru, and the kids- I-Pin and Lambo.
As the Vongola crawl through the ventilation duct, they get past a maze of infrared sensors. However, lasers begin to fire, much to the Vongolas' alarm. Suddenly, they fall from the duct, much to their confusion. A figure is standing in front of them, identifying himself as Dendro Chilum. He then says that he would test-fire his weapon on them. He fires, creating a gigantic explosion. However, Gokudera blocks it, and tells Dendro to move aside. Furiously, Dendro announces that he was the great Dendro, and introduces his Lancia Elettrica. Ryohei recognizes him as Dendro Chilum, known as the "top lancer" that skewered his own comrades in the back due to his bad temper. Dendro then declares that he would obliterate them, and unleashes his Corpo Electric Shock. However, much to Dendro's surprise, Tsuna blocks it, calmly declares that they didn't have time to play with them.