Dai Kiraina Aitsu wa Do-S de Alpha na Onzoushi: Hatsujou Dekiai Sex Marriage
Tsumugi, the daughter of a yakuza gangster and an omega, is fed up with her father's attempts at forcing her into some arranged marriage. She is determined to make a scene and break up the meeting as usual... until she meets the alpha Ichiori Tenkaji, the heir of a major conglomerate. She is suddenly overwhelmed by a hot desire that she has never felt before...!
"I've never known such pleasure...!"
Their rational thoughts are blown away by the pheromones, as Tsumugi falls helplessly into Ichinori's arms. As she drowns in endless pleasure, she instinctively realizes that he is the one whom she is "destined" to be with....
(Source: Kanon Comics, translated)
