Suigin is pulled into the world of “Grave Buster” by a woman named Twin Star. Surprisingly, Suigin ends up meeting his grandfather, Riku Yuuki, who should’ve been dead, and he can’t hide his doubts about this whole situation. Then a woman named Shostia performs a ritual that reawakens Suigin’s childhood memories. Before they can enjoy their reunion, they are attacked by someone...
and at times, I was the father 
that raised the beautiful Riku Rei.
وفي أوقات أخرى، كنتُ الأب الذي ربّى
ريكو ري الجميلة
und manchmal war ich der Vater,
der die wunderschöne Riku Rei großzog.
y a veces, el padre
que crió a la bella Riku Rei.
y otras el padre
que crio a la bella Riku Rei.
et même en tant que père
de la jolie Lei Riku.
ma anche il padre
della bellissima Rei Riku.
e às vezes eu era o pai que
cuidou da linda Riku Rei.
А порой я был отцом, 
что воспитал прекрасную Рику Рэй.