The greatest "demon lord" was reborn as the greatest human. This anime looked interesting at first glance but became boring after the time skipped into high school.
When I rate an anime, I take five categories into consideration: sound/music, visuals, characters, story, and ending. The sound, visuals, opening, and ending are all good.
Ard is the main character of the anime. Ard doesn't change when he reincarnates, and he keeps all of his powers.
Spoiler, click to view
His status as a typical nobody is quickly dissipated. His main conflict is his regret that he couldn't save Lydia. Ard is an interesting character, but the people around him determine whether the anime as a whole is interesting.
Ireena is a character that quickly grew annoying.
Spoiler, click to view
She has two semi-conflicts over the anime. The first conflict she has is with her lineage as it causes her to be bullied. We don't really see this, but it is apparently solved simply by Ard following her around and persisting in his attempts to become her friend. The second conflict is how she carries the blood of the evil gods, but Ard doesn't care about that so it's solved within a minute. These conflicts don't make Ireena interesting because they don't create any tension between the characters and are solved half-hazardly.
Ginny is worse than Ireena.
Spoiler, click to view
Her only conflict was her lack of confidence which was built up over many years and was immediately solved within one or more days. Over the course of the anime, Ginny becomes extremely bold, which is unbelievable considering her extreme lack of confidence earlier. On an additional note, the way Ard, Ireena, and Ginny speak is extremely annoying, but that's just a subjective opinion. There is another problem with Ireena and Ginny that I will talk about in the story category.
Spoiler, click to view
Olivia isn't very interesting herself, but the way she comes close to realizing that Ard is the demon lord is an interesting dynamic. Sylphy has her obsession with Lydia, but that's about it. Lydia's personality surprised me, but she doesn't really have any conflicts. Despite all of this, they are more interesting around Ard than Ireena and Ginny.
Spoiler, click to view
This is because of power dynamics. The story in this anime varies from terrible to good, and that all depends on who's around Ard. The first main arc in the story is the frenzied dragon king's attack, and it could've been solved so easily if Ard had just taken out all of the small fry demons instantly. The second main arc occurs because of a lack of communication, but it wasn't that bad. The duel between Olivia and Ard was disappointing because it could've been cool to watch. The last arc revolves around the past, and it's the best arc of the series. This is because, for once, the enemy is formidable. The problem with Ireena and Ginny is the fact that they are so weak. Ireena and Ginny talk about this briefly in the last episode, and their answer is to not give up. This doesn't fix the problem. Because of this gap in power, the enemies are weakened or we have to rehash the save your friends trope. We don't have to do this with Ard's old colleagues, and it makes them more interesting to interact with.
The ending was pretty good.
Spoiler, click to view
It did a good job settling the matter between the two "Demon Lords." I wish the fight between Ard and himself included more magic considering that's what they specialize in, but that's only a minor complaint. I don't need a season two, but if one comes along, I'll watch it.