139th Night: HQ Under Attack
The chapter starts in the Black Order's underground waterway, as the three officers under Cross's authority are complaining that their wages for the next three months have all been spent due to purchasing expensive whisky for Cross.
Suddenly, the boat stops since it hit with something that is obstructing the path. One of the officers plunges his arm into the water to take out the object that is blocking the gondola's path, but instead he pulls out from the murky water the lifeless body of the Oceania branch head.
Back at the laboratory, the horde of lv. 3's swarm in causing commotion among all the scientists and research staff, all attempting to escape alive.
By the way, Lulu Bell, careful of keeping up with the courtesies, formally introduces herself as the "Lust of Noah" and announces to the science division that their meeting will be short and swift.
Cut to the dinning hall, Allen's cursed-left eye or the monocle eye activates on instinct due to the presence of the akuma, and he immediately makes no delay, sprinting as fast as he can to the laboratory alerting everybody else.
However, the entrance to the lab is budge shut by a barrier made of black matter, and no matter how much Lavi, Bookman, or Allen strike it with their Innocence it doesn't give in; the barrier as well prevents sounds coming to the outside from the inside.
Allen's desperate to try and break through the barrier in order to save everyone inside the lab, but Howard Links suggests him another way to get inside.
Returning to the lab, almost all the scientists have beaten brutally beaten up and lined in rows, but they're still barely alive. Only two groups managed to escape capture and are hiding at opposite extremes of the lab: Bak-chan, the American Branch head, and Johnny (glasses guy), who has difficulty breathing but still living; and Reever plus five other researchers.
Bak and Reever communicate via phone to assess their current situation. Unfortunately, things turn for the worse when a small group of 'guardians' (skull masked-guys) teleport into the lab from the Earl's Ark in order to do some business, which Lulu Bell reminds to be quick about it due to time shortage.
The guardians start by taking a look at each of the beaten scientists individually in order to check if their victim's brain is useful to them. If they deem it useless, another guardian then paints an "X" mark on the victim's face meaning it has been rejected, and then the victim gets his head squashed by an akuma.
Reever can barely manages to supress his rage and fury building, witnessing at how his comrades are getting mercilessly slaughtered like animals without him being able at doing something; Bak speaks to Reever through the phone that he better keeps composure and not to move from his hiding spot, as the situation won't change even if he faces them all alone. Instead, Bak encourages Reever to have faith, because he knows that Allen's left-eye has noticed the akuma's pressence.
Returning with the guardians, they have now stopped with Tap-Dopp (chubby guy with big lips and bandages on his head). Tap demands those bastards why they're doing this tria-error killing process.
The guardian explains to him that when the exorcists raided the Earl's ark they lost too many members (thanks to Cross), and are creating new guardians by sacrificing researchers with suitable brains.
The guardian sadistically mocks at Tapp, congratulating him for possessing a suitable brain that they found. Skull guy performs a spell on Tapp, bringing forth excruciating pain on the victim that all the present researchers plus Johnny are not able to endure the grief and torment for their comrade's suffering.
In a matter of seconds, Tapp is transformed into a "skull" and is awakened.
Then, the guardian proceeds to move with the next individual, but before he starts again he's shot at the head by an enraged Reever, who has snapped at witnessing what they did to Tapp.
He announces he's section chief Reever and won't forgive the cursed bastards for turning his men into freakish monsters.
But before Reever can move a muscle, the guardian apparates in front of him ready to take advantage of the former's intromission to turn him into a skull.
Fortunately, in a split-second the guardian is cut down in halves upon an astonished Reever who looks up to see Allen, who used the white Ark's teleporter to get inside the lab.
The chapter ends with Allen possessing eyes of steel which carry out his inner wrath, directed at the akuma and skulls for the atrocities they did to the researchers, announcing to them all that he won't be forgiving them.