Koigokoro♥Koushinchuu

Ritsuka, a Ryousei student, believes that she'll find a wonderful boyfriend by following the love legends. After all, her older sister, Aya, followed them, and she got married! Yet every time Ritsuka carries out a legend superstition, Kuze-kun gets in her way...

Although they fight all the time, Kuze-kun is always there for her when she's feeling scared or anxious. While his words are ill-natured, he is kind to her, so Ritsuka feels happy even when she's mad at him...

Ritsuka falls in love with Kuze-kun. After four of the legendary superstitions were completed, Ritsuka and Kuze-kun fell in love with each other, but...?!

(Source: Fate & Enchantment Scans)