Shudo Kai is 35 years old. He is an illustrator who is starting to become popular. He lives with his wife, an office worker, and his son who is in elementary school. They are an ordinary family of three. Ordinary, but ordinary and happy. But when Shudo meets "a certain woman," his ordinary, happy life begins to crumble. A forbidden suspense story of adultery begins. A fall from the glory of life is now inevitable. In the last eight pages, a shocking turn of events will turn pink into red. This is now a must-read.