Manga: Warui Otona ni Narimashite
Author: Kuroiwa Chihaya
Plot: After breaking up with his girlfriend, Natsuno is homeless and has to crash at his office. When he happens to meet his old school friend and admirer, Ui, at a wedding ceremony, he hopes to find shelter at his place. But Ui has lost his memory after an accident, and doesn’t remember Natsuno anymore…!