Kaguya-sama: Love Is War (2019)

S3E4 Kaguya Shinomiya's Impossible Demand: "A Cowrie a Swallow Gave Birth To" (1) / Yu Ishigami Wants to Prove Himself Worthy / Chika Fujiwara Wants to Stay Over

After finishing their final exams for the second semester, the group plans a sleepover at Kaguya's house. However, Shirogane and the others can’t make it, leaving Fujiwara as the only attendee. While she barely registers Kaguya’s disappointment, Fujiwara becomes enamored with the striking butler, Mr. Herthaka, unaware that it’s actually Hayasaka in disguise. As the pajama party progresses, a sleep-deprived Kaguya shifts into a peculiar mood that goes unnoticed by the others. Fueled by this energy, she decides to call Shirogane and poses some rather outrageous questions.