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.
Though I was only able to become 
one because of you and these two.
رغم أنني تمكّنت من ذلك
بفضلك وبفضلهما
Allerdings hab ich das nur durch
dich und diese beiden geschafft.
Aunque solo pude hacerlo
gracias a ti y estos dos.
Aunque solo pude hacerlo
gracias a ti y estos dos.
Même si c’est grâce à toi et eux,
qu’on a pu s’en sortir.
Anche se sono riuscito a diventarlo
solo grazie a te e a questi due.
Graças a você e elas consegui
dar um jeito nas coisas.
Однако... я смог стать им только потому, 
что они помогли мне в этом.