A strict, but caring mother has an awakening when she is told she has cancer and it is terminal. She has a few months. She needs to complete her tasks in that short time frame.
Sin is a rock star. He has an amazingly loud voice with a range of four octaves. His secret is that he has created his voice through a method of vocal cord doping. His voice is now teetering on the edge, due to side effects from the vocal cord doping. Around this time, Sin meets Fūka, who is a street musician. When Fūka sings, her voice is so small. Due to Fūka, Sin looks back upon his past.
Sachiko Suzuki is a female high school student. She claims that she is an alien and her mission on Earth is to conceive a child with a human man. Sachicko seduces her class teacher Mr. Fukuda. After their intimate encounter, Mr. Fukuda becomes becomes convinced that Sachiko is not a human. Meanwhile, female student Kobato Hagimoto knows that Mr. Murata has a crush on some male students. Because of this, Mr. Murata is treated as a pig by Kobata until he can't bear the situation anymore.
