The World’s Greatest First Love, Vol. 11-3,6-13,15,16 (13 Books - all in shrink wrapping)
 
Shungiku Nakamura
A fresh start turns sour after a manga editor's new boss turns out to be his ill-fated first love!
When Ritsu Onodera changes jobs, looking for a fresh start, he's not exactly thrilled when his new boss turns out to be his old flame. Ritsu's determined to leave all that in the past—but how can he when his boss is just as determined that they have a future?