Nazo no Kanojo X tells the relationship between two high-school students, Mikoto Urabe and Tsubaki Akira. Urabe Mikoto, besides wearing her hair covering her face, no one would say that a person Urabe is unusual, but under certain circumstances, Akira discovers the error of reasoning.
Urabe always slept during class recess, one evening after all his companions to go home, she was asleep at her desk and left a bit of saliva, then came and woke Tsubaki, first saw his face exposed literally it was covered by her hair. Upon retiring Urabe, Tsubaki noticed saliva on the desk and decided to try it, what the passage of time caused her symptoms similar to a cold.
Urabe always slept during class recess, one evening after all his companions to go home, she was asleep at her desk and left a bit of saliva, then came and woke Tsubaki, first saw his face exposed literally it was covered by her hair. Upon retiring Urabe, Tsubaki noticed saliva on the desk and decided to try it, what the passage of time caused her symptoms similar to a cold.