Via Comic Natalie: Hotondoshindeiru’s manga series “Isekai Ojisan” will be adapted into a TV anime in 2022. “Isekai Ojisan” is being serialized on KADOKAWA’s web manga site ComicWalker, with the latest volumes #6 released last 23rd June 2021.
The summary from Yen Press reads:
Seventeen years ago, Takafumi’s uncle fell into a coma, but now he’s back like a man risen from his grave. Soon, Takafumi discovers two bizarre things: His uncle treasures video games above all else, and, while comatose, he was actually transported to another world as some heroic guardian! Now, not only does Takafumi have to room with an uncle who is literally magical, he also has to catch the guy up on two decades of history—smartphones, high-speed internet, modern anime tropes…and the traumatic outcome of the ’90s console war!