Their Distance  , is a 2015 Japanese independent film written, edited, and directed by Rikiya Imaizumi, featuring the South Korean boy band NU'EST in their Japanese film debut. "Their Distance" stars Ren, Fumiko Aoyagi, Minhyun, Hanae Kan, JR, Haruka Kinami, and Tateto Serizawa. The plot is centered around different ideas of love, from generational to cultural, told in a nonlinear narrative switching from various days in April to illustrate the perspectives of all the characters. Part of the film is in spoken Korean, with the film using actors who were fluent in Korean. The film was first screened at the 28th Tokyo International Film Festival on October 23, 2015, before being released to the general public on January 9, 2016. Kim Leon is a quiet apprentice working at a custom shoe shop in Japan. Two years ago, he ran a red light on his bicycle, causing Mikio Arakawa to get hit by a car and be permanently paralyzed below his waist. Overcome with guilt, Leon becomes withdrawn and does not notice that his co-worker, Akiko Kokaze, is in love with him. On April 2, college student Yoo Ji-woo confesses to his Japanese teacher, Kanako Koda, that he is in love with both her and his girlfriend, Han Suna. On April 3, Ji-woo tells Suna, who gets drunk to cope with the shock. Leon finds her on the morning of April 4 sleeping on his favorite park bench. As Suna leaves, she breaks the heel off her shoe, and her co-worker and friend, Nam Sang-soo, takes her shoes for repair. Captivated by Suna, Leon recognizes her shoes, and on April 5, he begins secretly following her home after her shift ends to make sure she arrives safely. Meanwhile, Sang-soo, who has fallen in love with Kokaze, asks Kanako to translate a love letter he is writing to her. As Kanako does so, Arakawa suggests that they separate, as he and her parents feel that his injury is burdening her. On April 6, Sang-soo picks up the repaired shoes, and, suspicious of Leon's sudden change in behavior, Kokaze begins following him in secret. On April 8, Sang-soo finishes writing his letter and gives it to Kokaze on April 9. While Ji-woo sorts out his confused feelings with Kanako, he also encourages her to make up with Arakawa.