Ep. 21: Yuki channels his regrets into strength for the race against Shindo
Aired on March 13, 2019

Carrying the weight of teammates who died to pass the sash, Yuki prepares for the upcoming race. Shindo approaches him, prompting Yuki to transform his overflowing anxieties and regrets into strength as he waits for the start. During the event, Yuki manages to finish the race, falling just 2 seconds short of winning his segment. Following his effort, Nico-chan raises their rankings further and passes the sash onto King, continuing the relay with the momentum built by the previous runners.
Episodes
- Ep. 17 · Haiji faces opposition from Jota and Joji while seeking his own reason for running.
- Ep. 18 · Kakeru confronts Fujioka who reveals Haiji's past strength while Haiji faces medical reality
- Ep. 19 · The Tokyo-Hakone Ekiden Race Commences With Strategic Pacing and Musa's Surge
- Ep. 20 · Hanako supports Jota while Joji reacts to revealed feelings and Shindo prepares for the relay
- Ep. 21 · Yuki channels his regrets into strength for the race against Shindo
- Ep. 22 · Sakaki's tragic spirit affects King, who reflects on his arrival at Chikusei-so
- Ep. 23 · Kakeru Breaks Records While Haiji Secures Kansei University's Hakone Ekiden Qualification