佐伯さんは眠ってる (Series) favorite_border

[DeepL Translation - needs review] Introduction to Volume 1: Miss Saeki, the class president, tries all kinds of tricks to doze off during class. Tokimiya, who sits next to Miss Saeki, becomes increasingly concerned as he observes her... Based on the novel "Senyuu. Gakumon! ～and "Doutei Jigoku" and "Seven Deadly Sins: Seven Days of Thieves and Holy Girls" by Yo Kogikuji.

(Translator: DeepL)