AyaYui

AyaYui is the het ship between Ayato Sakamaki and Yui Komori from the Diabolik Lovers fandom.

Canon
Ayato was the first person Yui met when she moved into the Sakamaki Mansion and was about to drink her blood if not for Reiji's interference. However Ayato is the first one to drink her blood and comments that its "the best" blood he's ever had.

If Ayato is chosen in the games, he and Yui will begin a romantic relationship, their happy ending depends on how many points the player gets.

In the first season of the anime Ayato is seen as the main vampire, as he has most scenes with Yui and comes to care for her faster then his brothers. In the second season, Ruki Mukami is the main vampire from his family and has a rivalry with Ayato over Yui.