For the sake of a friend. Special Week, full throttle!! 【Due to the great popularity of the e-book, the paper version comic is now on sale!】 Special Week unexpectedly joins the race between Silence Suzuka and Air Groove. What will be the outcome of this tumultuous race, and where will their friendship lead!?―― With the Vodka & Daiwa Scarlet arc also beginning, the excitement of volume 4 is ramping up even more! 【Recommended information from the editor】 Following volume 3, volume 4 continues the story of Special Week and Silence Suzuka! The passionate friendship story of the two will reach a temporary conclusion in this volume. The final race is especially noteworthy! The intense running of these characters is vividly illustrated by S. Nōsugi-sensei, so be sure to give it a read!