Sentouin, Hakenshimasu!

Agent Six is dispatched by his evil organization to a fantasy world

Agent Six serves as a combat operative for a sinister secret organization. Although he possesses significant fighting capabilities, he lacks intelligence. His routine existence changes dramatically when his superiors assign him to travel to a fantasy realm. This assignment marks a major shift in his life, transporting him from his usual duties into an entirely different setting. The narrative focuses on his role as a spy within this new environment, highlighting the contrast between his professional status and his mental limitations.

Agent Six Leads His Unit by Being the Biggest Jerk Possible

Now in command of his own combat unit, Agent Six sets out to fight the enemy the only way he knows how: by being the biggest jerk he can!

Agent Six is the sleaziest soldier tasked with clearing a demon-controlled tower for the army.

The military faces a critical situation requiring the clearance of a tower currently under the control of powerful demons. To handle this dangerous mission, they select Agent Six, who is described as the sleaziest and nastiest soldier available. Despite his questionable character and reputation, he is considered the only man suitable for the job. The army relies on his unique abilities to successfully clear the tower and eliminate the demonic threat within. This premise highlights the contrast between the serious nature of the mission and the unorthodox choice of personnel assigned to execute it.

6 faces a golem assault and humiliates Heine while Snow uncovers a spy conspiracy.

The Chief Strategist orders 6's unit to attack Heine's Demon Army forces, suspecting this is a trap to eliminate him after an emotional insult. Upon arrival, a magical rock golem approaches, prompting 6's team to ignore it while Alice retrieves C4 from Kisaragi. 6 engages the golem alone, releasing his suit's limiters just as the explosives arrive to destroy the threat. Heine attempts to finish off the defenseless 6, but Grimm wakes to paralyze her with a curse. Snow then strikes, removing a power-amplifying magic stone. 6 humiliates Heine before both armies, earning Evil Points. That night, the Strategist bribes Snow to label 6 a spy, but Snow overhears him discussing his own espionage for Kisaragi with Alice.

6 and Alice prepare defenses while Snow returns to the Royal Guard amid looming invasion.

Snow, Rose, and Grimm regain their Royal Guard positions after 6 and Alice depart the Kingdom. The pair establishes a teleporter, though Alice notes a month is required for stabilization before the Demon Lord's army attacks. To earn Evil Points, 6 flashes women in the kingdom, earning the nickname Zipperman, and uses the points to bury landmines on castle approaches. News arrives that the Chosen One vanished with an Elite Four member, prompting 6 and Alice to plan an escape. However, Tillis appears and urges them to remain for the final battle. The following day, they stand with Tillis as Heine and Gandalkand lead the enemy forces. The landmines successfully delay multiple golems and Heine herself during the march.

6 Stays to Fight the Demon Lord's Army Invasion in the Grace Capital

The Demon Lord's forces invade the Grace capital, prompting Heine to challenge 6. While Rose and Grimm delay the attackers, Snow joins 6 and Alice, who are attempting to flee with Tillis. After Snow pleads with him, 6 chooses to remain and defend them. Lacking sufficient Evil Points, he acquires them by removing Snow's underwear in front of the group. He purchases a large anti-materiel rifle and destroys the incoming golems. As Heine, Gandalkand, and flyers approach, 6 activates his suit and a summoned chainsaw blade to eliminate all combatants except a terrified Heine. He proposes a one-month truce to Heine. Once the enemy retreats, 6 and Alice decide to continue their stay in this world.

The Con Artist Marriage Girl!

Kisragi dispatches the mutant Tiger Man to assist 6 during their Earth conquest. Following a duel where 6 shatters Snow’s blade, Tiger Man provides a replacement. Alice, 6, and Snow explore a forest to catalog local fauna, leading 6 to bond with a blue walking crustacean named Mokemoke. Snow subsequently kills the creature and shares the meat at a tavern. During dinner, Alice questions the reality of magic, attributing observed phenomena to psychic manipulation or science. Offended, Grimm conjures a demon to prove magic exists, but Alice remains unconvinced when the entity fails to grant her extraordinary wishes before vanishing.

A knight with a corrupt and black-hearted nature

Alice and 6 navigate desert survival and internal conflict while seeking an ancient weapon.

Six’s unit gathers water nuts in the desert but discovers they are atop the Sand King. Alice escapes by destroying their buggy, forcing the group to trek on foot. She spends Six’s Evil Points to summon a tent, but supplies dwindle rapidly. Grimm collapses after one day, and Six feels guilty when harassing Snow causes her to faint. Desperate, Rose considers eating Six, who misinterprets this as a sexual advance until Alice clarifies the situation. Six earns Evil Points fighting a ravenous Rose overnight. With enough points, Six purchases a new buggy and supplies to return to Grace. Tillis reveals that Toris and the Demon Army plan to attack Grace, which lacks water. He gives Alice a map to ruins where elite demons seek an ancient weapon to defeat the Sand King. Alice resolves to steal the weapon from them.

Kisaragi Leaders Celebrate Victory Amidst Lilith's Secret Livestream and Hero Attack

On Earth, Kisaragi leaders and their subordinates celebrate a recent triumph over the heroes with a party. During the event, Lilith secretly broadcasts candid footage of Astaroth and Belial to the internet, as well as to 6, Alice, and Tiger Man in another world. This action grants her several Evil Points, allowing her to manipulate the "best boss" voting results in her favor. However, before the other two girls discover her deception and administer punishment, Astaroth is on the verge of responding to a question about her feelings for 6. The celebration is abruptly interrupted when other heroes launch an attack on the party, having located the venue through Lilith's unauthorized livestream.

6's unit targets ancient ruins for a secret weapon while Heine and Russell guard it.

As Tiger Man and Grace's Army repel an invasion, 6's unit enters Toris territory to locate a secret weapon in ancient ruins. They encounter a camp established by Heine and Russell. 6 plans to let the demons trigger the ruins' traps before seizing the prize. Inside, the group observes high-tech features and familiar sights. When Russell and Heine approach the device, 6 strikes Russell with a low blow, nearly killing him. After Alice revives Russell, 6 forces him to activate the weapon, revealing a giant mech. Russell enters the cockpit to pursue 6's unit. Heine teleports away to avoid being taken hostage, but 6 manages to grab her bra just before she vanishes.

Alice deploys The Destroyer mech while 6 battles Russell and others face new conflicts.

Alice accesses 6's Evil Points account, enabling a negative balance to fund his defense against a mech. While Alice constructs her secret weapon, The Destroyer, 6 engages Russell outside using various Earth-summoned weapons. Upon Russell's capture by Rose and Snow, Alice arrives in her giant mech to destroy the enemy machine. Three days later, Alice informs 6 of the victory, noting that Tiger Man assisted the Grace Army. 6 and Alice coerce Russell into providing water for the Kingdom of Grace by threatening him with Tiger Man. Later, as Tillis negotiates peace between Grace and Toris, 6 and Alice test Grimm's shoe curse with socks, causing Grimm to self-destruct. Heine vows revenge for her comrades. On Earth, the Chosen One and Faustress of the Wind argue in a Kisaragi office before Belial reprimands them. That night, 6 shares his dream of world conquest and a harem with Alice.