Ep. 40: Joe celebrates Noriko and Nishi's engagement as Jose arrives in Japan.
Aired on July 13, 1981

Noriko and Nishi are officially engaged, bringing genuine joy to Joe, who is thrilled to see his longtime friend marry his dream girl. At the same time, Jose arrives in Japan just two days after their bout has been officially confirmed.
Episodes
- Ep. 36 · Joe Expresses Displeasure as Harimau Is Introduced as His Challenger
- Ep. 37 · Joe faces Harimau twice and seeks Goromaki Gondo's help at Tange Gym
- Ep. 38 · Joe the Brawler faces Harimau the Wild Beast in a challenging match
- Ep. 39 · Yoko places Carlos in a hospice where Dr. Kinninski diagnoses his severe punch-drunk syndrome.
- Ep. 40 · Joe celebrates Noriko and Nishi's engagement as Jose arrives in Japan.
- Ep. 41 · Jose arrives in Japan shortly after the bout confirmation
- Ep. 42 · Yoko Consults Dr. Kinninski Regarding Joe's Potential Punch-Drunk Syndrome
- Ep. 43 · Joe trains at a mountain lodge to hide his health from Danpei while Yoko tracks him down.
- Ep. 44 · Yoko Urges Joe to Cancel Title Match Before He Suffers Carlos' Fate