Gisou Shinkon – Ijiwaru Onzoushi no Dekiai kara wa Nigerarenai

Hana, an ordinary office receptionist, gets the surprise of her life when Koichi—her company’s most eligible bachelor with elite looks and pedigree—proposes. Their wedding is a dream, but on their honeymoon night, his demeanor shifts dramatically, trapping her in a sweet torment she never saw coming.