When Storms occur in Spring

Hayato and Haru hate each other, or so they thought. In reality, the brunette has had a crush on him for some time but was scared to act on it. What will happen when the both of them are sent out on a mission in the Most Romantic City of the world (or so my friends claim) and are alone together?
Read to find out how two smart people acted utterly stupid.
Warning: ooc-ness and some heated scenes, nothing mature though. Also a bit of language so young readers, beware!