Ikinari sensei ni natta boku ga kanojo ni koi wo shita (2016)

Young-Ung is not having a good time. His girlfriend is a gold digger and cheated on him. He is in Japan and working, but his employer has laid him off and is being raided. The products are also not what they seemed. Along comes the beautiful Sakura who needs to learn Korean in order to perform at work at a travel agency and to feed her child and herself. The two meet and there is a sparkle.