Lock-On!.Arresta gets put in charge of taking care of Plug, something she greatly objects to. While finding Plug at Sento's house, she is hit by Sento once again, and soon becomes aware of his ability to see and touch her. Wondering why Plug hasn't reported such a matter to the office, Arresta is then insulted when Sento implies her job is something 'an idiot can do'. Arresta challenges Sento to a match where they are to lock-on to the most C targets, with Arresta reporting Sento to the office should she win. Sento relies on his senses as opposed to the gadgets the charger girls use and wins the bet. As such, Arresta keeps her word, but can't shake the somewhat arousing feeling Sento's bat gives her.