Death March to the Parallel World Rhapsody Manga Series by Ayamegumu, Hiro Ainana, shri

Suzuki is a programmer in the midst of a death march-crunch time, when coders live on caffeine and pull twenty-hour days. He just needs a little nap...but then he has a dream. A dream where he's in another world, with RPG powers right out of his game. A dream where he calls down a great disaster. A dream that, suspiciously, just won't end...

Satou's caught in an underground labyrinth. Zena's also lost, and her only companions are three beast girls. Demons abound as Satou and Zena try to get to safety!

Satou has escaped the underground labyrinth and now owns two new slaves: Arisa and Lulu. And Arisa, who attempts to creep into his bed on her very first day, may be the only one in this world who can understand him...

Having saved the mysterious elf girl and her protector, Satou faces his next challenge: ascending the Cradle, a training facility for elves packed with monsters and powerful guardians! Satou fights his way up, his sights set on the 200th floor-where a fearsome foe awaits...

After escaping the collapsing Cradle, Satou reunites with his party. Now, with a new friend in tow, the time has come to bid Seiryuu City farewell. After making a promise to Zena, Satou sets off on a journey to take Mia back to her hometown, but on the way, they make a shocking discovery that brings her to tears. However, all is not lost-the town of Kainona may yet hold some answers...

At long last, Mia is reunited with her companions in the town of Kainona. Things quickly go south, however, when Nana prepares to engage said companions in combat! How will Satou deal with this sudden turn of events?

When a plot to steal the Forest of Illusions from its resident witch is revealed, it is up to Satou and his party to prevent it from happening. They'll need to deliver three hundred potions to Sedum City to succeed, but the nobles behind the scheme won't make it easy...With just a few hours to go, how will Satou and the gang manage to pull this off?!

The gang's off to a land of ill repute-the Muno Territory! There's a Hydra assaulting the fort, and while Satou was prepared for a rough time, the sight he beholds shocks him to the core! What's going on in this territory?!

Looking to deliver a letter from the Witch of the Forest of Illusions, Satou and his party decide to visit the village of the forest giants. He soon finds the villagers are still recovering from hydra attacks, including three children who were poisoned by the hydra’s toxic breath. As Satou gets to work on brewing an antidote, Karina ponders how she can enlist the giants’ assistance in ridding her hometown of the demonic presence that plagues it...

Satou and his cadre arrive at Muno Castle, where a demon posing as a magistrate is in charge, and he’s got everyone fooled-or so he thinks...! The beastfolk girls try to take him down, but little do they know, a horde of goblins is preparing to lay siege to Muno City! Will the party be able to fight a war on two fronts, or is the city doomed to fall...?

After saving the Muno Barony, Satou is bestowed with the title of honorary hereditary knight. Soon after, the priestess Sara arrives, come to restore order and support the restoration effort in the wake of the recent attack. But her guards don’t seem to have much faith in Satou’s demon-slaying abilities...