[The thud is enough to distract him momentarily, but it's the sound of his name that takes his full attention - before he can reach his magic, clutched in Spider's hand, as she momentarily blacks out - and when he turns around and sees Tachibana, he remembers the extent of those injuries there]
[He attempts to regain some semblance of control, but he feels too out-of-control, so focused on just making her pay. He hurries over to Tachibana regardless, perhaps not fully realizing what he's doing and that he's moving. He stumbles over to him, back completely to spider, perhaps foolishly, but focused entirely on Tachibana even through the haze of his own anger and fraying control]