The Story - Taking a route that's not often treaded by most isekai, we the viewers experience a character not being summoned, but reborn into a new world that has its own rules and gimmicks that it adheres to throughout, such as unique languages that are learned and utilized. Interestingly, instead of being gifted with some broken skills right out of the gate, we get to experience a character putting forth actual effort to better himself as he embarks on his 2nd chance at life in a new world.
Art and sound - The animation is rock solid and often times fluid when showing off magic or fighting scenes. The music is enjoyable, especially the ending song. The best part is that rather than creating an opening sequence to save money, they just integrate the opening songs into the story.
The Characters - One of the strongest points of this anime lies with the characters. Relevant characters have the ability of either adding to the overall enjoyment of the story or are reliable when needed instead of solely relying on the main character to bail everyone out of any given situation. Specifically, what caught my attention was how the characters played upon each other to bring forth a form of character development through their interactions. For example: The main character original was a perverted fat middle aged otaku, yet despite reincarnating, he doesn't magically become a better person but instead carries over those negative traits. However, as the main character interacts with others, he's able to reflect on how his behavior effects others and slowly changes for the better.
Enjoyment - This issue is important to address because this can either make or break the series for you if you don't pay attention or are the type of person who gets easily triggered. When going into this anime, try not to get hung up on minute details. The thing is, I've noticed some people latching on to the fact that the main character has the mind of a middle aged man and having issues with the fact that he lusts after some female characters that are biologically around his body's age, yet grossly overlook the fact that the main character learns how his actions can affect others and shows remorse for his carelessness. Thus, giving character growth to the main character and being in line with the whole second chance at life motif. (Something that a lot of isekai fail to properly address because the past life of main characters' tend to be forgotten and since the MC usually tends to be overpowered and made out to be either abnormally average or the pinnacle of alpha males, much (if any) character growth isn't experienced).
Side note - To the people who are quick to label this series as an isekai for pedophiles; it's hypocritical to turn around and give passes to anime that possess immortal beings that "interact" with teenagers, people who change their appearance to be younger to interact with teenagers, or 1000 year old loli that interact with teenagers simply because they either look attractive or are cute.
Overall - Unless you come into this series with "ulterior motives," (ex. trying to project yourself on the MC but get pissed off when the series points out that the character originally was some middle aged loser, thus you look for any excuse to justify your butthurt after perceiving what you think is some kind of personal attack against you) there is little reason to not enjoy this anime. It's highly recommend it that you give this particular anime a chance because it provides a fresh slice of bread in an ever staling loaf of genre known as isekai.
