This is the fifteenth chapter of the Overlord Manga.
Ainz arrives at his room, thinking that it has been half a month since he last set foot here. As he enters, he is warmly greeted by Albedo who is all too happy to let Ainz choose whether he would satiate himself with either food, bath or the implication of the last choice being herself. Ainz is rattled by the turn of events that he backs away while demanding explanation for her actions. Albedo happily explains that she's merely emulating a situation where a newlywed wife would welcome her husband who has just returned home from work, stating that it's a norm. Though still frustrated by her actions, Ainz replies that it is a tempting situation. Then, Albedo gives out a loud scream and exclaim that she had totally forgotten the most important part of the entire ordeal, the naked apron attire. She immediately starts to strip to change into the apron but is stopped by Ainz who is more interested in discussing the matters at hand.
Ainz then proceeds to hand over the money earned through his adventuring at E-Rantel to Albedo. He states that the creation of monsters from the defense system requires the use of money back when they are still in YGGDRASIL and would like to know if the rule still holds true for this world, to which Albedo replies that his order will be carried out immediately. He later reminds her to also investigate whether item creation is also feasible while she checks the monster creation but stops short when mentioning Clementine. Knowing what is clouding Ainz's mind, Albedo affirms that Clementine's body has disappeared from where it was kept. While worrying that Clementine's resurrection would cause the information about Nazarick to leak out, Ainz tells Albedo to keep utmost attention towards the circumstances and bring Clementine's equipment to Pandora's Actor for appraisal.
After taking care of the trivial matters at hand, Ainz spread open a world map he obtained from E-Rantel on a table as Albedo watches. Noticing Albedo's inquiring gaze of the map, Ainz explains that the map lacks the many countries of the demihumans but it's still the best he can get right now. Albdeo instantly says that she would have copies of the map made and distributed to every Floor Guardians. Before she can do that, Ainz halts her to give her an quick explanation of the world from the information he has gathered.
Ainz points out that E-Rantel lies at the center of the map whereas Nazarick is situated a bit northeast of the city. Next he speaks of Re-Estize Kingdom and Baharuth Empire which are both on the two ends of the map and separated by Azerlisia Mountains. From what information he had gathered from the Magic Guild's guildmaster, there exists a demi-human nation called Agrand Council Alliance to the northwest of Re-Estize Kingdom. It is noted that several of the council members seem to consist of dragons. Albedo notes that it is the place where Demiurge himself has gone to. Ainz then comes to introduce the Slane Theocracy to which he voices his concern that it is a country that they should look out for. As Albedo asks whether the lines of the map are indications of the countries' borders, Ainz replies that it would seem to be so but advises Albedo to not trust the map too much.
Following the introduction of the countries to Albedo, Ainz starts to go into further details of what the countries are capable of. A number of cities exist at the northeast of the Empire whereas a settlements exist at the southwest of the Empire where the people would tame dragons as mounts, effectively making them akin to Dragon Riders. Even if it seems easy for Nazarick to attack them, Ainz reminds Albedo not to be careless. Next, Ainz indicates that there is a country that's primarily governed by dragons at the east of the Great Lake even though it's not shown on the map itself. It's said that it's a country founded by a powerful dragon in the past and the royalties all have dragon blood in their veins though Ainz expresses his doubts on that particular claim. There's also a Seaport City that exists to the east though he doesn't give much detail aside from the name. Finally, Ainz mentions the existence of the Eight Greed Kings' Floating Castle and that it is surrounded by powerful magic barriers and that there's a possibility that individuals equipped with World Items may have hidden themselves there. That concludes the introduction of the world from the information gathered.
When Albedo asks Ainz which of the countries should be their primary concern, he simply shrugs and say that the countries are of inconsequential importance unless there's the existence of an overwhelmingly powerful individual. Ainz then moves his concern towards the current situation of Shalltear. Albedo claims there's nothing to worry if it's merely physical well being but she expresses concern over her mental state while recalling how Shalltear remains slumped at Nazarick's bar. She explains that Shalltear is grief stricken by her actions of defying Ainz and urges him that a more direct punishment would help to lift her grief since it would help to let her feel like she's properly punished for her insolence.
Ainz tells her that he'll think of a proper punishment in due time and Albedo apologizes should she had somehow spoken out of place. To this, Ainz simply comforts Albedo and says that she's merely performing her duty as the Overseer. With everything wrapped up, Ainz decides to return to E-Rantel to continue with his adventurer work as Momon, leaving safety of Nazarick in Albedo's hands. Albedo gleefully says that he can leave everything to her, his wife. Then Albedo suggests that Ainz should be on the lookout for the ones who used a World Item on Shalltear since they have no idea who they might be. Taking another check on the defense of Nazarick, Ainz inquired Albedo on the progress since his last command. He is informed that Cocytus has yet to turn in his report but Entoma has contacted that they should be engaging the Lizardmen any days now. Ainz wonders what kind of a battle will he be seeing between the forces of Nazarick and the Lizardmen, who have stronger physical bodies than a mere human being. Albedo adds that the strong bodies of the Lizardmen would prove to be useful in creating powerful undead and further boost the defense of Nazarick. She swears to Ainz that they will subjugate the Lizardmen.
Zaryusu Shasha treads through the shallow waters of the swamp with a few large fish over his shoulders, arriving at a wooden house where his pet Rororo lives. Rororo immediately stretches one of its head out of the house when Zaryusu makes his presence known. Even though he understands that Rororo wants him to stay and play a bit, he tells his pet that he would need to observe the fish he is breeding. After leaving the fish he brought along and telling Rororo to share the fish among its many heads, he makes his way towards the fishery. Just as he approaches one of the fishery farms he notices a figure standing at the edge of the water. It doesn't take him long to realize that the figure is his brother, Shasryu Shasha, and proceeds to ask what a chieftain like him is doing out here; just as Shasryu himself is wondering what Zaryusu is doing to appear at a time like this.
- Ainz Ooal Gown discusses with Albedo about the surrounding countries.
- Zaryusu Shasha discusses with Shasryu Shasha about the fishery farms.
- An undead messager appears and declares that their undead army will appear and kill all the lizardmen in eight days' time.