Death March to the Parallel World Rhapsody

Mia has been kidnapped, and Satou is hot on the trail of the strange specter that took her. The path leads to the place she originally was rescued from, the massive tower known as the Cradle.

Satou and the gang make plans to help return the elf girl that he rescued to her home in the forest, but first they need to prepare for the long trip by learning how to rough it outdoors.

With five girls now in his care, Satou needs to find more permanent lodging. Unfortunately his real estate ventures will have to wait, as the city comes under attack by giant insects!

Satou chooses to become Tama, Pochi, and Liz's new master rather than let them return to a life of slavery. He also ends up with the strange sisters Arisa and Lulu, the younger of which seems to have a secret tied to Satou's original world...

With the aid of the slaves he was trying to help, Satou gradually starts his trek to escape the labyrinth, and rescue the other people who were trapped with him.

Satou is shown around the city by Zena when they encounter demi-human slaves who are being abused by a mob. But prejudice isn't the only problem when everyone suddenly finds themselves deep in a dangerous labyrinth.

Satou seems to be stuck in the parallel world that looks like an amalgamation of the game projects he's worked on. And while his insider knowledge of the world's systems gives him an advantage, he still needs to find his bearings before he can start planning what to do next. To that end, he heads to the nearest city to establish a base of operations.

Suzuki Ichirou is a programmer who is working a death march to keep up with nightmare combination of unreasonable deadlines and unreliable coworkers. After crawling under his desk for some much-needed shut-eye, he awakes to find himself in a familiar, but distinct, fantasy world.