第 8 集: 翠銀擔任最終守墓人的角色
2017年5月20日 播出
Riku Yuuki explains the game of Grave Buster to Suigin. In the game of tomb raiding and tomb guarding that has gone on for years, Riku Yuuki ended up being the one and final guardian to guard the Goddess's tomb. Suigin finds out that guarding the Goddess's tomb is connected to protecting Riku Rei, as well, and tells Yuuki as he is fading away that he will become the last guardian. (Source: Crunchyroll)