Wheel of Fortune and Fantasy
偶然と想像 (original)
Starring Kotone Furukawa, Ayumu Nakajima, Hyunri, Kiyohiko Shibukawa, Katsuki Mori, Shouma Kai, Fusako Urabe, Aoba Kawai
It's a drama and romance movie, and has a rating of 7.5 out of 10 from Imdb which is usually fine for this kind of movie.
Watch it here
Not found streaming from Germany.