Isekai de Cheat Skill wo Te ni Shita Ore wa, Genjitsu Sekai wo mo Musou Suru: Level Up wa Jinsei wo Kaeta

To Another World

Tenjou Yuuya has been bullied all his life. Then he discovers a door to another world. Powerful weapons. Vicious monsters. It all seems like a fantasy game! And when he returns to his world, he realizes that his leveling up comes with him. (Source: Crunchyroll)

Ousei Academy

For having saved her, Kaori's father, chairman of the elite Ousei Academy, is offering Yuuya a place at Ousei. His siblings attempt to push Yuuya aside, claiming they are better suited to Ousei, but Kaori rejects them as spiteful bullies. Yuuya leaves with Kaori, leaving his siblings humiliated and furious. He worries about fitting in, but the chairman assures him Ousei values strength of character over grades, making it easier to hone skills and have fun. As a trial, Yuuya attends a science class run by Ms. Sawada, where most female students are smitten with his good looks. Yuuya becomes tentative friends with Ryō and Shingo and is overwhelmed by people treating him with actual kindness, so he agrees to transfer to Ousei. Kaori shows him the nearby shopping center, and while sharing snacks, insists they use each other's first names. Many eavesdropping students assume they are on a date, embarrassing Yuuya. He decides to return to the other world for fun, but this time encounters a girl named Lexia, whom he rescues from a monster. Unsure what to do, he sneaks away unseen once her guards arrive. (Source: Wikipedia)

Life Changes

Yuuya decides to spend some of his new wealth on clothes. While shopping, he is grabbed by photographer Hikaru as replacement for male celebrity model Shō and takes part in a photo-shoot with professional model Miu, who is drawn to Yuuya’s inexperience and charm. Shō abruptly shows up late and forcefully flirts with Miu. When Yuuya protests, Shō tries to punch him, only for Yuuya to instinctively defeat him. Due to the cameras still recording, Shō is exposed online as a scumbag, destroying his career. Despite enjoying himself, Yuuya declines Hikaru’s offer of a modelling contract to focus on his studies, but Hikaru insists on paying him with free designer clothing. In the other world, Princess Lexia of Arselia is determined to thank her anonymous hero and stubbornly returns to the dangerous forest with her guards to find him. Yuuya visits the other world and finds Lexia and her guards under attack again, so he rescues them, and Lexia abruptly asks Yuuya to marry her. In Japan, Miu's boss is determined to hire Yuuya before other modelling agencies get to him. (Source: Wikipedia)

A Step of Courage

After Lexia's sudden proposal, proper introductions are made, and Yuuya receives an invitation for an audience with her father, the king of Arselia. However, Reigar, Arselia's first prince, is most displeased an assassination attempt against his half-sister Lexia under his orders was foiled just before she was rescued by Yuuya. On Earth, Yuuya begins his life at Ousei Academy, where he quickly makes new friends among the students and impresses them by spectacularly rescuing Kaede Kazama from a stray soccer shot. Later, the Red Ogre gang, commanded by his jealous twin siblings, attack Ousei to take revenge on Kaori. Though momentarily paralyzed by his self-doubts, Yuuya gathers his courage and single-handedly takes down the entire gang. When the police arrive and arrest the gang, the Red Ogres leader tries to kill Youta and Sora for getting them into this mess, but Yuuya rescues his siblings, leaving them deeply ashamed of their past mistreatment of him. (Source: Wikipedia)

New Family

On another expedition in the other world's monster forest, Yūya encounters and rescues a Black Fenrir puppy, whom he takes adopts as a pet and names "Night". As he takes Night for walks in his neighborhood on Earth, Yūya inadvertently draws even more positive attention to himself, and also meets Kaori and Miu by chance. After Night proves more capable than his appearance suggests, he accompanies Yūya on his monster-slaying exploits, during one of which they slay a Crystal Deer which wields both fire and water magic. A drop item it leaves behind after getting killed bestows Yūya with an instant hot bath whenever he needs it. On another trip, they discover a cave, which contains a man's skeletal remains and a tome labelled The Book of the Sage. In the meantime, an infamous assassin named Headhunter is hired by Reigar's agents to kill Princess Lexia. (Source: Wikipedia)

The Sage and Magic

The book is the journal of the Sage, the original owner of Yuuya's cottage, who mastered every known skill and was invited to become a god, but declined in favor of retaining his humanity. The book warns Yuuya to cultivate friends who will never fear him, no matter how strong he becomes. Responding to Yuuya's desires, the book grants him the Sage's magical power and teaches Yuuya and Night everything about using magic. At Ousei, the students are invited on a two-day camping trip. Yuuya’s group includes Kaede, Akira and Rin. Yuuya's friends, including Kaori, take him shopping for camping gear. The girls are separated from the boys and trapped by a fire, but Yuuya uses magic to rescue them. In Arselia, Lexia’s father King Arnold learns Lexia proposed marriage to Yuuya, and concludes Yuuya seduced her. Additionally, a girl with a dark aura confronts the Divine Rabbit, God of Kicks, and announces she will destroy the world. (Source: Wikipedia)

An Encounter in the Woods

While continuing to explore the forest and sharpen his skills, Yuuya and Night encounter a girl being menaced by a group of goblins. Despite Night strangely trying to keep him away from her, Yuuya saves the stranger. Introducing herself as Luna, the girl claims she came into the forest for training. After Yuuya treats her with a kindness she never experienced before, she falls for him and asks him to help her improve, which he readily agrees to. Sometime later, Yuuya returns to Earth to take a break from their team-up in favor of his field trip, with his classmate of mountain land owned by Ousei Academy. To the students' bafflement, they have to spend this weekend sleeping outdoors and foraging their food. Yuuya once again impresses his fellow students by hand-catching fish for dinner. In the other world, however, Luna is revealed to be Headhunter. (Source: Wikipedia)

Off-Campus Study Trip

The study trip isn't at all what Yuuya and the others had imagined. They're faced with a series of unexpected challenges. Later, Yuuya meets with Lexia and her guards so they can escort him to his audience with the king, but Night begins acting strangely. (Source: Crunchyroll)

The Princess and the Assassin

After learning about Yuuya's relationship with her, Lexia questions Luna, who reveals her life's story before she became an assassin for the Guild of Darkness and that her latest mission is to kill Lexia. Expecting to be executed by either the princess or the guild for her failure, Luna is surprised when Yuuya and Lexia instead extend their friendship to her; the princess hires her on as her bodyguard, and both girls declare their affection for Yuuya to each other. After spending the night in the hut, Yuuya escorts the two girls to the edge of the forest, where he parts ways with them because he has school coming up the next day. Right afterwards, Yuuya and Night are joined by a little scarlet boar, whom Yuuya names "Akatsuki". Back on Earth, Yuuya participates in a soccer trial competition for the upcoming academy's ball sport games, where he continues to stand out even as a goalie. The same afternoon, Miu's boss tracks him down at Ousei. (Source: Wikipedia)

Master and Apprentice

The manager of Miu's fashion magazine Cutie Beauty approaches Yuuya as he leaves school, only to be refused; but when she learns of the impending sports competition, she decides to take pictures of Yuuya participating in that event. While on another monster-hunting expedition deeper within the Demon's Den, Yuuya is aided by the Divine Rabbit, who has been observing his progress and has chosen him to be his successor as the bearer of the Divine Kick. After hearing about the equilibrium maintained between two groups of advanced beings, the benevolent Divines (of which the Rabbit is a member) and the destructive Viles, Yuuya agrees to get trained in order to protect his friends in both worlds. When the sports competition begins, by happenstance Yuuya ends up participating in every discipline and easily prevails; and for assisting her during the tennis match, Kaori gives him a passing kiss on the cheek. When next facing his Vile opponent, the Rabbit is able to surprise her with the magic Yuuya taught him as recompense for the training, whereupon she decides to target Yuuya for elimination first. (Source: Wikipedia)

To the Royal Capital

Yuuya and Kaori begin spending more time together as they prepare for their exams. While in Yuuya's home, Kaori accidentally discovers the gate to the other world; Yuuya lets her in on his secret, and she promises to keep it. In the capital of Arselia, Lexia introduces Luna to her father, but as the circumstances for Luna's conversion are explained, King Arnold grows even more enraged at Yuuya's "indecencies" against his daughter. Upon hearing this news, Reigar decides to accelerate his plans to have his father and Lexia assassinated to claim the throne. After gaining a holiday following the competition, Yuuya makes his way to the royal palace and meets the king. His awkwardness worsens the king's bad impression of him even more, but then Reigar's agents attack with a magic-suppressing barrier. With his enhanced abilities, Yuuya handily defeats the assailants; Lexia chides her father for his temper, and proof of Reigar's involvement is discovered. (Source: Wikipedia)

The Mysterious Assailant

Even with Reigar still at large, Lexia and Luna (with Owen for additional protection) give Yuuya a tour of the capital. As they pass the local Adventurer's Guild, Luna spontaneously decides to register herself and Yuuya; but when Yuuya is tested for his magical capabilities, the results, far beyond normal, still draw a lot of attention. While Yuuya and the girls are on a herb-gathering quest, Reigar's whereabouts are discovered, and Owen asks Yuuya to help apprehend the treacherous prince. Reigar is captured alive, but then the Vile girl appears, reveals that she had persuaded Reigar into attempting the coup d'état in order to initiate a genocidal war, and prepares to kill everyone present. Yuuya deflects her attacks with his magic, and the Vile girl retreats, but not before killing Owen. On Earth, Kaori vainly tries to visit Yuuya. (Source: Wikipedia)

Yuuya and Kaori