Unique/Refreshing plots

Tetsuji Ayoagi, works as a teacher but because of his unsociable & stern nature he is referred as "Mambo-Sensei" by the students...After years he suddenly received a sudden invitation from his old friend Kota who isn't supposed to be around..It was also because of what Kota once said he decided to become a teacher .. Despite his suspicions he decides to visit that place but was greeted by a strange young man there. ..who said will reveal his identity if Ayogai makes loves to him while making him

For four years, Shougo Natsuka has loved his popular, perfect, and handsome classmate Hiro Hakushima. Out of fear of ruining Hiro's reputation, Shougo never confessed his feelings and remained his friend over the years. Now in college, Shougo has started sleeping with Seno, a sex friend that is the exact opposite of Hiro. Shougo settles into a life with staying by Hiro's side as his friend and releasing his urges on Seno. But, when Seno and Hiro experience a body-switch after an accident, will S