Command Tower of Loyalty

Command Tower of Loyalty is a game event in Mass for the Dead that was released on April 17, 2020 to April 27, 2020.

Background
At the Enhanced Treant test site near Nazarick, Demiurge showcases to the protagonist his culture treants that he developed using the sample of the Supreme Odor Flower given to him by Momonga from when they acquired the said tree for the cherry blossom viewing. From his research, he has determined that the "Supreme Tree" that he brought back to Nazarick was not a result of contamination but a naturally occurring specimen. In addition after repeated efforts in breeding and culturing he finally found a practical application for the treants to contribute to the Great Tomb of Nazarick's defense. He managed to train the treants to follow orders.

Demiurge is informed by Abyss Demon that two human bandits have stumbled close to the test site, Demiurge decided to demonstrate. The demon interrupts the two thieves in the middle of an argument. Though taken by surprise they deem him to be an easy mark due to his clothes, to their shock they are easily incapacitated and dragged to the test site. One of the thieves tries to bribe the demons offering him the money from their hideout but is quickly silenced. Demiurge has Abyss Demon place the unconscious man next to an Enhanced Treant, and orders it to take the left arm off first to which it complies and begins to absorb the human. On the next human, Demiurge as the treant drains its prey, demonstrating that no matter how much its prey cries it will only obey those from Nazarick.

The protagonist finds this development impressive and reasons that if the Enhanced Treants are planted around Nazarick, it will decrease the amount of manpower needed to defend the dungeon. While the area that Demiurge has tested is small, the two decide to take it to the next phase and present it to Momonga.

Upon hearing the results, Momonga is thrilled at the news of the project. However, he asks if there are any issues that may arise. Demiurge states that while normal humans are easy to be dealt with, the same cannot be said for adventurers that might appear, but nonetheless that should not be a problem. Since the treants have no real intelligence they cannot send warnings via [Message] however they can signal incidents by shaking their branches to alert personnel. However at most three treants can connect with each other via their roots. In order to centralize a effective defense network Demiurge believes a command tower is necessary for the security network.

The only thing he believes that will serve as an effective command tower would be the "Supreme Tree" which will receive all incidents and reports from the other treants. Momonga remembers in a previous report that there was a high possibility that the tree they acquired was not the actual "Supreme Tree" but an offspring. Thus the real "Supreme Tree" that is spoken in legends and stories in E-Rantel must be still out there. Demiurge asks permission to conduct a search for the tree which Momonga grants.

Incident
Demiurge gathers Aura Bella Fiora to join him on this mission. Knowing that their destination would be the Great Forest of Tob, she suggests they request Hamsuke to join them on this mission. In addition Slimeko and the protagonist join due to their previous handle of the Supreme Tree's offspring. Heading to the forest they meet with Hamsuke who is now managing a village of goblins and ogres. Learning that they wish to find the Parent Tree, Hamsuke guides them back to the Forest of Death for clues with her demi-humans providing support. However no clues can be found and Demiurge admits that it is unlikely that an offspring from the Parent Tree would be close to it's offspring. From his studiies of the Enhanced Treants that were a result of his experiments with the Supreme Odor Flower, there are two possible ways that the Parent Tree dispersed its seeds, one is the method of planting and transporting them to the living organisms.The second are that the seeds themselves can fly. He had observed that the enhanced treants possessed seeds which they can shoot as projectiles, but also possess wings to allow them to fly on the wind. The Floor Guardian hypothesizes that the Supreme Odor Flower's seed came north using the northern wind from the Azerlisia Mountains. He believes at most a few kilometers is the range of the seeds and with the ogres and goblins they will eventually find it, though they may lose some manpower.

Hamsuke reports to that nothing has been found, though a couple of her ogres have gone missing. While they could have gotten lost, Demiurge has Hamsuke send a search part for them. The search party fails to return prompting the group to search for themselves. Hamsuke take the lead to the site where the ogres vanished, but is stopped by Aura as she notices that one of the dead trees is actually a treant. It's guessed that ogres were eaten by the plant. Demiurge thinking they finally found a clue wishes to examine the treant before confirming the Parent Tree is here. Aura attempts to sneak behind the treant only for it to attack her with its roots. Observing the sly tactic and the Demiurge takes to the air in his Imp for and see a large tree in the distance, confirming they have touched the edge of the Parent Tree's security. He is nearly hit by a projectile coming from the Parent Tree, and Demiurge realizes that the Parent Tree has already received an advance warning of intruders from the treant below.

Retuning to the ground he informs Aura and company of the widespread defense network around the Parent Tree. Even if they ignore all the treants and charge from the air, they would still be under intense attack tree's defense network. Added to the seeds that contain neurotoxins that can be a hassle. Knowing they could not capture the Parent Tree with the current strength, Demiurge then returns back to Nazarick to retrieve Cocytus. After getting approval from Albedo, Demiurge orders the Pleiades to make preparations for another cherry blossom viewing as now that the Parent Tree has been found they could give their master Momonga a "normal ceremony".

He and Cocytus return to the forest where Cocytus pledges to assist. He had be vital in defeating the previous tree, however Demiurge insists this time they will bring the Parent Tree alive. Once Cocytus weakens the tree enough, Demiurge prepared a special substance that will induce the tree into a deep sleep and will be safe to transport back to their territory.

The group then approach the tree and finally behold it sight and its surrounding treants. Cocytus then begins the attack by using [Frost Aura] to freeze a portion of the treants around the Parent Tree, which are then shattered by a follow-up attack of [Cutting Wind]. The remaining treants then begin to launch a barrage of seeds at the Floor Guardian. Demiurge transforming into an Imp approaches the Parent Tree while flying low through the opening opened by his friend to avoid the barrage of seeds. He then casts [Hellfire Wall] around the Parent Tree, separating it from its thralls.

The treants outside the circle, attempt to reach the Parent Tree, but they are stuck in the fire. Aura using a vial given to from Demiurge, containing an opiate extract from the Enhanced Treants, drops the contents around the Parent Tree. The liquid permeates in the ground, causing the treants that have already been damaged by the fire to lose their power and fall to the ground. Demiurge then grabs Cocytus and together they fly into the inside of the Hellfire Wall.