Death March kara Hajimaru Isekai Kyousoukyoku
English name: Death March to the Parallel World Rhapsody
Genres: Adventure, Fantasy
Type: TV, Episodes: 12
Aired: Jan 11, 2018 to Mar 29, 2018
Studio: SILVER LINK., Connect
Source: Light novel
Rating: PG-13 - Teens 13 or older
Synopsis:
Ichirou Suzuki, a programmer nearing his thirties, is drowning in work. Worn out, he eventually has a chance to catch up on sleep, only to wake up and discover himself in a fantasy RPG world, which is mashed together from the games he was debugging in reality. In this new place, he realizes that not only has his appearance changed to a younger version of himself, but his name has also changed to Satou, a nickname he used while running beta tests on games. 

However, before Satou can fully grasp his situation, an army of lizardmen launch an assault on him. Forced to cast a powerful spell in retaliation, Satou wipes them out completely and his level is boosted to 310, effectively maximizing his stats. Now, as a high-leveled adventurer armed with a plethora of skills and no way to return to reality, Satou sets out to explore this magical new world.