The Fearsome and Stern-Faced Duke’s Engagement to the Noble Phantom Flower

Ikatsui Kao de Kyouaku Kishi Danchou to Osorerareru Koushaku-sama no Saigo no Konkatsu Aite wa Shakoukai no Maboroshi no Hana deshita

厳つい顔で凶悪騎士団長と恐れられる公爵様の最後の婚活相手は社交界の幻の花でした