Clover no Kuni no Alice - Tokage no Hosakan

From Seven Seas: Former assassin Gray Ringmarc serves his master Nightmare in the Tower of Clover. Known for his mature personality and kindness to animals, Gray also has a dark side. When Alice is whisked off by an adversary, Gray’s inner darkness emerges in a fit of jealousy. Now there will be hell to pay. Can Alice tame his reptilian heart?