Tsunokei Joshi wa Kokurenai

In this strange world, there are people with horns and people without. When Tsunoko Yagisawa enters her third year at university, she falls in love with Hanasaka-kun, a student in her class. She loves Hanasaka-kun so much that she can't help but wonder if her feelings for him are genuine. Two children who tend to be delusional can't confess their feelings for a particular reason...?