- #1
Besides the best friend Chinatsu, with whom Haruna trains together, we also have the Rival character Touko (Fighter lv5), and they make peace after a friendly fight (Both are battle junkies), she explains her circumstances at the time of the summoning and how she did things she regretted, so she too is now part of the main party, training under one of the Great Demon Kings who is related to Deris, and she yearns for MC (Haruna and Chinatsu are not romantically interested in anyone).
If you read the manga, you should have seen, but 4 of them are killed quite early in the story, initially defeated by Haruna, but then killed by Deris as he tells Haruna that the one who looked like a good guy just left before saying good bye, although his corpse is in Deris' Item Box
Then there is the usual Otaku Trio who did nothing, but ended up as targets too, they apologized for not helping, they had a fight, recognized Haruna's new strength, and they too became friendly, and they got support from MC Master in regards to his influence in the Kingdom, so that they could leave the place to research a way to leave to another world.
And the remaining revolved around the playboy Hero, a rare job that is exceptionally easy to level up compared to others due to how the world level system works, but after being humiliated by Haruna much later in the story, the Hero leaves along with the others who relied on him, and as the classmates told him to stop, and to give up, the Hero ended up killing all of them. He is then found and killed by Touko by her Master and MC's orders.
So the only classmates that remain are 6, who are relevant to the plot. What a convenient clearing.
[collapse]About the reason to summon people:SpoilerThe Prime Minister was wary of Nell and Deris, the strongest humans, who couldn't be controlled, so he did a secret ceremony to summon people that could defeat them from another world. The problem started when the weakest of them was sent to one of the problems, becoming his pupil and growing very strong, and another of the potential heroes being taken in by Nell, and both become the strongest. So that backfired.
But he is ok with it later, why? Because Haruna and Chinatsu become friends with his Granddaughter, who is then selected as National Hero, with the 2 as supporters, thus, all the wariness is basically gone, although he still has a bad relationship with Nell and Deris.
So the reason to summon people could be said to be: Grandpa wanted to use nepotism for his granddaughter's sake, but worried with people he could not control, he kidnapped isekai people to grow stronger to defeat the 2 he couldn't control... That backfired, but now the 2 annoying entities are related to 2 (+Touko) of these summoned ones, and they became friends with his granddaughter, so in the end, he got what he wanted, and the rest doesn't matter.
Typical corrupted politician, but he moves from "villain side" to "hero side" now that he is using his corruption abilities for his granddaughter's sake, and indirectly, for Haruna and Chinatsu.
[collapse]About the Great Demon Kings:SpoilerSome really strong entities (The weaker ones being Lv7), there are 8 of them, and they are not a group trying to dominate the world, rather, it seems they are more into it for the sake of creating a "necessary evil" to unite humanity, and also as a form of entertainment for themselves, so Deris and Nell were strong Hero potentials to defeat or even join them, but they refused, so now, it may be Haruna, Chinatsu and Touko who they may be looking forward the most.
All of them, with no exception, have eccentric personalities, and are friendly to the main characters for the most part.
[collapse]So yeah, plot becomes a dumbed down "Gotta defeat'em all" after the interesting parts either are resolved, or become ridiculous.So Here is a general ideal of the main characters:Haruna: Simple minded hot blooded battle junkie girl. Basically no character growth.Deris: Self-insert snarky grumpy old man, likes to complain, likes to laze around, but knows a lot about things, and is extra thankful for Haruna doing his lunch and so on. Since he the master, there is basically no Character Growth.Chinatsu: Haruna's best friend, the common sense character, truly pitiable. Will she grow as a character? (She may be the one with the most potential, but... Considering those around, that may not be directed to a good path.) Nell: Tsundere, Yandere, gorgeous, jealous, long time relationship with Deris, violent, can't hold back, some could say she is a bit abusive. Although a normal native human, she is basically Fire incarnate, in every meaning.Touko: Rival Character, hot blooded, battle junkie/Berserk, simple minded, very similar to Haruna. She actually does have some character growth due to her training.Lilyvia: Succubus Great Demon King, lazy, maid outfit, but does nothing maid like since she is lazy, strong but lazy, likes Deris, has a cat/dog relationship with Nell. Likes Haruna because Haruna takes care of her and is good at cooking, so she can be more lazy. Doesn't care if she is the mistress.