renrenka noi, oberon (fate), oberon (third ascension) (fate), fate/grand order, fate (series), commentary, english commentary, highres, 1boy, bespectacled, black hair, blue sweater, book, border, box, english text, glasses, holding, holding book, holding box, librarian, long sleeves, looking at viewer, male focus, parted lips, ribbed sweater, short hair, simple background, solo, speech bubble, sweater, unamused, upper body, white border