Keitaro and his love interests form a Rainbow Motif for each color of the gay pride flag: red for Taiga, orange for Hiro, yellow for Hunter, green for Keitaro, blue for Natsumi, and purple for Yoichi. Fitting for a Boys' Love GenreVisual Novel.
Some of the characters' Animal Motifs indicate their personalities.
Yoichi's is the wolf, befitting his lone wolf personality.
Yuri's is the butterfly, one of the most well-known animals that pollinate flowers. As a Yaoi Fangirl and Shipper on Deck, most events she organizes are either to have some Female Gaze or to get two scouts to have a Love Confession... or something else in some other cases...
Aiden's is the lizard, an animal that sheds its skin it has outgrown through moulting. Similarly, Aiden has a tendency of removing his clothes and wearing only a Naked Apron while cooking.
