ADN-737 Dark Lover Contract: The man I loved without knowing was a member of the underworld. Tsubaki Sannomiya

Miyata Ayaka, a serious office lady, felt empty in her cold marriage to her husband. One night, Ayaka meets a mysterious man named Sakurai by chance and is saved, which leaves her heart shaken. However, Sakurai was a dangerous figure living in the underworld. It's someone I shouldn't be attracted to, yet I can't resist the feelings and desires. What awaited Ayaka as she stepped inside was an ending she could never have anticipated.