Dizi Adı: Eyeshield 21
Bölüm Adı: The Man Possessing Speed Of Light Appears!?
Sezon/Bölüm: 1. Sezon 64. Bölüm
Yayın Tarihi: 5 Tem. 2006

Riku appears and talks about his past and how Sena could run because of him. Riku asks Sena who he thinks is the best player. His answer? Shin. He then asks why and Sena says because “his power and speed are incredible.” Riku is part of Seibu who missed the game before due to his pride.