Games and anime, being in one's own room. The zone of absolute comfort and protection.
Fear of the outside society, people, interactions - can lead one to live life in a mannerism of escape. Escapism.
While being subject to constant fantasy consumption, either by watching a perfect anime world, or trying to take part in it through an online gaming experience - one can simplify the experience of life, and better it.

But isn't there something missing?

This story is told by a protagonist who was born under the name Bruno. As he struggled in social life, addicted to escapism, he spent his years in his room, while slowly reaching adulthood, without stopping his behavioral pattern, he eventually reached the age of 90.

As he is trying to think about the end, he is already in a different room, in a different body, in a different world.

In a world of online-gaming-like fantsy, he shall discover...

The Isekai Lie