Man, that is one impressive powersource
Power sources come in all shapes and sizes.
Hold on, did they deplete?
Yes, using that ability makes Rias temporarily around as flat as Koneko.
Suddenly it's not that impressive
But it strikes fear into the hearts of enemies.
“This is bad! It’s dangerous to leave those breasts alone! Breasts that respond to being summoned! Breasts that replenish Sekiryuutei’s power! We won’t know what will happen next! The one who is the most dangerous isn’t the Two-Heavenly dragons or Ophis! It might be Rias Gremory’s breasts! Sekiryuutei and Rias Gremory. When these two are together it creates miracles time after time…… And the things that are the “key” for that are…….those breasts!