"Zero Count" by Hiromu Mutou 2 volumes- complete
Tokieda Nao learns that that she has been set up for marriage as payment for her father's debt. She leaves her all-girl school and transfers to her fiance's school to call of the wedding. But she has to search for him first based from the 5 clues given by her father amongst the formerly all-boy school.
I was thinking the art looked so familiar and then I saw in the mangaka's rants mentioning her other manga "Never Give Up". The heroine kept on repeating the hints over and over again. Recaps are a must in animes but for mangas I think it is if it's being published in a magazines. But reading this manga straight with redundant lines is irritating especially if it's only 2 volumes. The story reminds me of "Meine Liebe" manga about a student looking for her brother.