Recommend me a good manga and the plot just like this.. a romance story between student an...

BL?

http://www.mangago.me/read-manga/devils_honey/uu/devils_honey-chapter-1 (student x teacher)

http://www.mangago.me/read-manga/i_ll_educate_you_on_everything/ (Student x Teacher)

http://www.mangago.me/read-manga/pink_to_mameshiba/ (Student x Teacher)

http://www.mangago.me/read-manga/sensei_punch/ (Student x Teacher)

http://www.mangago.me/read-manga/oni_to_tengoku/ (Teacher x Teacher)