Pink and Gray (2016)

Rengo Shiraki, a popular movie star, is found dead-along with a suicide note-by his best friend, Daiki Kawada, a struggling actor who dreams of achieving the fame and fortune Rengo has enjoyed. The suicide note prompts Daiki to write and publish Rengo's biography, the success of which unwittingly throws Daiki into the limelight. Struggling to come to terms with Rengo's suicide as well as with fame he can not really call his own, Daiki sets out to discover the truth behind his friend's death.