- Top brass hired some random guy (gamer) to fill their ranks despite the high cost of the isekai mission (looks like nobody cares about success, poor investors). And they did it because his name was neat.

- They also prepared a large compensation for his sister in case of his death (can't you just hire an orphan if you don't care about his training?).

- The briefing time was so short, the MC failed to remember crucial facts about the other world.

- Isekai (in its true sense) is a popular topic (according to the story's setting), but the MC was absolutely oblivious to it, except for some negligible points. This is despite the fact that the MC is a gamer!

- The MC was introduced to his squad just a few minutes before the mission started (Nuff said). The squad leader also refused to introduce everyone before going through the portal (likelihood of an incident right from the start? Nah).

- AK 47.

- Rifle in the hands of an amateur with zero training and questionable mental health.

----- end of the 1st chapter -----

The more you read, the more glaring plot holes become. How MC handles the storage of meds and equipment, how carefree he is, how naively he deals with thugs, how lame his combat tactics are (though maybe this is not a plot hole since he is just a gamer, but even a gamer will try his best when he feels cornered) - all bad.

The worst is, he was complaining about the short briefing but done nothing to gather the intel on site.

[Due to some circumstances MC got a wife (Rana-elf princess) but he still lets other girls cling to him, literally in front of his wife, even though she hates it. His mental describes how good it feels and how he "doesn't have the courage to push the girls away". He keeps saying his marriage is a sham even though his wife actually treats him like a lover (Sitting on his thighs, letting him feed her, gosh he even rubbed her belly and kissed her). In my opinion, this novel got worse when new girls started appearing and MC became Rito

Note: The first girl who tried to seduce him is the beast girl Lanseal. Why don't I like her? She initially served a h**ny prince who kidnapped MC's future wife, she didn't outright do anything bad, but she didn't try to stop the prince either. She threatened MC and his wife to help stopping the war (Elf King wants to use the fact that h**ny Prince tried to do bad things to Elf Princess Rana to start a war. After MC's wife asserting dominance on MC to stop Elf King from making things troublesome, Lanseal was like, omg MC you are my lover thanks so much for stopping the war, Right. In. Front. Of. His. Wife]

Generation-long curses, forbidden names, Beasts, intentionally erased-histories, alternate universes (and how the MC's universe relates to all this), and conflicts between and within other countries (feels a bit like Overlord-quality in terms of politics here). A common theme seen throughout this story is the weight of lore/history, as past events, even false ones, influence the present.

The MC viewed his marriage as a "sham" due to its political nature. The conflict caused from this view is solved later in the story. His love for his wife is real though, and this sentiment stays consistent throughout the story. In fact, he feel guilty when other girls start becoming interested in him, but this concern isn't shared by his wife (or many others in his adventuring party) as most are familiar with the practice of polygamy (well, there are some who oppose it but in general it's presented as a not-too-serious culture-clash issue).

It's a happy ending