Steeplechase (3) (S03E07)

The Kudou Family's secret research has revealed that they are developing parasite dolls—female combat robots infused with a parasite. These experiments are taking place at the Steeplechase Cross-country venue, which is under unusually stringent security, making it impossible for Tatsuya to infiltrate. Consequently, Tatsuya assigns Pixie to monitor the parasites while he fine-tunes the CADs and provides guidance to the underclassmen in his engineering role. However, the mounting tension and relentless workload are wearing Tatsuya down, leaving him more exhausted than he has ever felt.