Who's In The Way of Our Love?

(from ebookjapan):
Akihiko Hayami, a studious, athletic, and good-looking man, has always refused to go out with girls, even when they have made advances toward him. This is because he has a natural-born fiancée, Maiko, who is of a good social standing. However, Maiko has fallen in love with Ryoji Makabe, the man who asked her to go out with him. Akihiko is not convinced and offers to fight Makabe in a duel. What will happen in this match for Maiko's love? In addition to the title story, "Who's In The Way of Our Love?" this collection also includes "The Target of Love," "Andy's Friend," and "Onihime Will Go Unpunished".