A broken guy running from his own failure gets roped into a relay marathon by someone who sees something in him he can't see in himself. What starts as ten strangers in a falling-apart apartment becomes the only family any of them have. By the final race, you're not watching a sports anime anymore, you're watching people choose each other, over and over, across 23 episodes that never waste a single moment on anyone who doesn't matter.
Kakeru is running from his past when he literally runs into Haiji, a charismatic student who offers him a place to stay at a cramped apartment. What Kakeru doesn't realize is that Haiji has orchestrated everything. The apartment is actually a dorm for the Kansei University Track Club, and Haiji has recruited him for something massive: the Hakone Ekiden, Japan's most prestigious university relay marathon. The problem is that Kakeru abandoned running years ago, and most of the team members have zero competitive experience. Together, this ragtag group of misfits and burnouts must transform into elite athletes within months, pushing through exhaustion, doubt, and the weight of each other's expectations. The show balances raw sports intensity with genuine character development, showing how discipline and camaraderie can rebuild broken people. It's about redemption through effort, finding your place in something bigger than yourself, and what happens when a group of underdogs refuses to accept their limitations. Running becomes the vehicle for personal transformation, not just physical victory.