The fourth season of Zhen Hun Jie.

Women's bicycle racing was born during the post-war period of turmoil. It has been several decades since its short competitive history came to an end after only 15 years. Women's bicycle racing has been revived as the Rinkai League. With the birth of a major star who is active all over the world, many feel unprecedented excitement. Invincible Queen, Ibushi Silver Veteran, an athlete who has reached the pinnacle in other sports. The challengers came with only big dreams in their hearts even though they had no experience in sports.

From time immemorial to the age of space colonization, there is one legend that has stayed unchanged in every history book—the tale of the immortal bird Phoenix. A being whose blood is said to grant eternal life or wisdom, the radiant figure ensures the continuation of sentient life in the universe as it oversees human civilizations and their development. Yet, mankind remains a slave to its habits; from happiness and sorrow, to wrath and love, a myriad of emotions continue to play an integral part of human life. Simultaneously, time and time again, certain beliefs and agendas persist over the centuries to disturb the fragile equilibrium of the world's preordained nature and principles. It appears that fate and its dynamic variables can manifest itself in many ways—and oftentimes exhibits a bizarre sense of humor...

Totsuko is a high school student with the ability to see the "colors" of others. Colors of bliss, excitement, and serenity, plus a color she treasures as her favorite. Kimi, a classmate at her school, gives off the most beautiful color of all. Although she does not play an instrument, Totsuko forms a band with Kimi and Rui, a quiet music enthusiast they meet at a used bookstore in a far corner of town. As they practice at an old church on a remote island, music brings them together, forming friendships and stirring affections. Will they discover their true "colors"?