In order to "defend" the girls that depend on him, he must operate the orphanage while overcoming the powerful people, authorities, and former classmates that surround him.
Now with a light novel adaptation.
Includes the following:
- Accidental Marriage: Shinji learns that for beast-men like Lucia, the only people allowed to pet them on the head are either parents/legal guardians, or ones that the beast-men recognize as master, after he pets her head. When she offers herself up, sexually, he retorts that she should save that stuff for her husband... Little does he realize he just made a wedding vow.
- Achievements in Ignorance: Shinji Naomi has absolutely no idea how his "Protect" skill works. Yet, completely by accident, he rescues Lucia from, in chronological order, a goblin who had made the orphanage he was assigned into its lair, a deadly illness, a burly thug who had less than wholesome intentions for her, and an orihalcum sword that was flying at her head.
- Adaptation Expansion: The newly released light novel contains explanations and backstory missing from the manga.
- Age Lift: In the light and web novels, the ages between Shinji and the girl orphans who crush on him are much closer, 16 and 13 respectively, as opposed to 20 and 10 in the manga.
- Alternate Continuity: The original web-novel was entirely wish-fulfillment of a kid who was horrifically bullied by his father, his entire high-school class, and apathetic teachers, who then finds himself in another world surrounded by orphans who worship him and seek to be his brides, and nobody can touch him. The new light-novel and manga has a far more realistic take on the situation. Yes, the setting remains the same, but the characters are far more well-developed, and their actions are far more realistic, with genuine consequences.
- Battle Harem: In the original source, Shinji's orphan crushes are all powerful combatants in their own right, especially as they gain boosts from his "Protect" skill.
- Crapsaccharine World: While everything looks fine in the first couple of chapters, we learn in chapter 7 that things are truly terrible in the kingdom where Shinji and class get summoned. The neighboring kingdom is arming for war, with several armed skirmishes already, the elven forest was invaded and burned to the ground, with refugees en route, and the demon king's army continues to mount increasing levels of pressure. Oh, and the kingdom's trump card, the adventurers? A bunch of unruly hooligans who see nothing wrong with fighting each other in public, caring little, if anything, about collateral damage.
- Fille Fatale: It needs to be said that Shinji runs an orphanage and the girls crushing on him, in the manga, are children in his care, who are half his age, at best. He's 20. Their imaginations... leave little room for doubt. He's rightly squicked by the Jail Bait angle... The web and light novels apply Age Lifts to make him 16 and the girls, 13.
- Good Feels Good: Both Lucia and Shinji learn this first hand. Lucia would very happily serve Shinji hand and foot, if he'll let her, simply because it feels good to have her efforts appreciated. Shinji, likewise appreciates her genuine gratitude for the food, shelter, and protection he gives her, because her smile is worth protecting.
- Happiness in Slavery: In the I Owe You My Life manner. Lucia insists on having Shinji as her "master" because he not only saved her from a goblin, but healed her from the brink of death.
- Humans Are the Real Monsters: At least in the novel version. Shinji meets one of the Demon race and she states that her tribe is fighting the humans, in self-defense. Said demons are also happy to sign a non-aggression pact with him once they have a taste of what he's capable of, while the humans keep on antagonizing him no matter how easily he beats the crap out of them.
- Just in Time: The story begins with Shinji arriving at the orphanage to find a goblin holding Lucia by the hair, with the poor girl being on her deathbed. Shinji's "protect" skill not only annihilates the goblin but cures her illness and makes her completely healthy, just before she breathes her last.
- Mundane Luxury: The situation at the orphanage was so bad before Shinji's arrival, that a bar of soap, three meals a day, and an afternoon snack are considered luxuries the kids could never dream of.
- Reality Ensues: Both Lucia and Erin have PTSD as a result of their horrific childhoods.
- Lucia watching her parents murdered, being abused as a slave, and abandoned when she fell ill, have her suffering nightmares every single night, and Shinji has to pet her head and coddle her so she realizes she's not alone, so she can rest.
- Erin's life, spending her formative years on the run, facing the constant threat of kidnapping, enslavement, or worse, has her wake up spontaneously in the middle of the night, with a full-blown panic attack, searching for a knife. In fact, Shinji states that she once came at him with a knife while he was using the bathroom at night, not knowing where she was or what she was doing. He has to coddle and restrain her until the fugue passes, and she's aware that she's actually in a safe place.
- Shinji himself is terrified of dealing with children because the only parental models he has, his own father and mother, both abused and abandoned him, respectively.
- Right for the Wrong Reasons: In a flashback, we see that the king who summoned Shinji and class, sent the rest of them to the front lines because they all have skills corresponding to rather flashy jobs, wizards, paladins, etc., while he got lackluster "protect" and "analyze" skills. Thus Shinji was sent to run an orphanage, just to be rid of him. Running an orphanage turns out to be the perfect place to send him, as he's actually quite competent, trustworthy, and he truly does care about the welfare of the kids in his care, though he has a hard time showing it. The kids also happen to love him for it.
- Royal Harem: In the web-novel, Shinji gets fed up with King Waltham's ineptitude, which leads to the evil country of Balk declaring war on him, personally, so he marches his way right past Waltham's top military, his former class-mates, and the local nobles, grabs King Waltham by the scruff of the neck, throws him off the throne, and proclaims himself "temporary" king to deal with the crisis. Having the support of the vast majority of the citizens, the princesses of both the Elves and the Demons, and even the very nobles Shinji pushes past to see King Waltham, he gets away with it, and Shinji already had a significant harem by that point.
- Selective Obliviousness: Lucia's response to his rebuffs along the lines of "No, because [very rational reason]" sound to her like "Yes, if [very idealistic and romantic interpretation]" Shinji learns very quickly to simply let her crush on him, unchallenged, because trying to rebuff her only makes things worse.
- Unwanted Harem: Just going by the cover, there are at least three girls crushing on Shinji, and at least one of them, Lucia, is clearly underage.