Ep. 11: Koyomi and Tsubasa discuss her past transformation during a stressful encounter involving Shinobu.

Following school, Koyomi converses with Nadeko regarding Shinobu’s distinct gaze toward Suruga and herself. When Tsubasa arrives, Nadeko departs suddenly, leaving Koyomi and Tsubasa to discuss his negative influence on Hitagi at school. Tsubasa suffers a headache, prompting Koyomi to recall events from Golden Week where she transformed into a white cat-woman that drained vitality from others. Oshino explains this condition stems from accumulated stress over the years. To resolve the issue, Koyomi serves as bait to lure the creature. Shinobu then bites Tsubasa, draining her energy until she reverts to her original human form.

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