After Being Banished for Having the Trash Skill "Gacha", I Came to My Senses and Broke Off Relations With My Selfish Childhood Friend ~After Getting an All-Purpose Cheat Skill, I Aim for the Strongest Relaxing Slow Life!~ (Hazure Skill "Gacha" de Tsuihou Sareta Ore wa, Wagamama Osananajimi o Zetsuen Shi Kakusei Suru ~Bannou Cheat Skill o Getto Shite, Mezase Rakuraku Saikyou Slow Life!~) is a Japanese Light Novel written by Ryuta Kijima with illustrations by Tamago no Kimi. It was first released as a Web Serial Novel on Shousetsuka ni Narou in 2020. It has a manga adaptation by Weshica/Shogo, which was serialized in Manga Gaugau.
Crest is the fifth son of the Bahurst Duke, and the family pariah, hated and tormented by his father and elder brothers from the moment he could walk - because his mother died giving birth to him, and they see him as a murderer who escaped justice.
On his 15th birthday, he finally sees hope of a better future, as he had a prophetic dream that told him he would get a special skill, Gacha. When he goes to church to receive it, he gets it... but he discovers too late that the skill won't work, and it doesn't come with instructions on how to make it work. His father, incensed, exiles him to the [Lower World], something no one else has survived.
The very next day, the Pope sends a message to the King, which is shared in audition with the Ducal families: according to prophecy, the kingdom is under threat of a swarm of monsters, but God has sent counter-measures in the form of three very special skills: The Saint, belonging to Ellis Rifeld; The Hero, belonging to Minuet Mycelin... and Gacha, belonging to Crest Bahurst. Pandemonium erupts when Duke Bahurst reveals what he just did, and the King orders the retrieval of young Crest.
Unfortunately, it may be too late: Crest accidentally discovers how to make Gacha work as he hunts monsters in the [Lower World], and decides that, if the [Upper World] doesn't want him, then he's going to find himself quite comfortable living in his new place. And, if someone from there wants him to return? Tough shit, he's not going back, and damn the kingdom. Most of these numbnuts deserve it.
Associated Tropes:
- Adaptation Deviation: The way Crest has to handle his older brothers coming after him in the manga, after they banished him unjustly in the first place, varies greatly from the original source. In addition to the Adaptational Angst Upgrade when having to deal with Albert, Leon also turns out to be much, much more dangerous. In the novel, Leon only went murder-crazy after consuming one magic stone. In the manga, he goes completely sociopathic but is still relatively sane, until Crest bests him, in spite of the power-boost. That's when he gets the "brilliant" idea to consume more stones, and after it looks like he's self-destructed, a split-second before Crest pierces his heart, he goes One-Winged Angel and blows a freaking hole in Crest's shoulder, blowing the sword arm away and knocking Crest to the ground.
- Aristocrats Are Evil: With the exception of the exiled Crest Bahurst, Minue Mycelian (who is a half-commoner Heroic Bastard) and possibly Duke Rifeld (who does appear to understand Enlightened Self-Interest and long-term planning), the aristocrats are all extremely short-sighted and care only about themselves, trampling whoever they have to for their own advancement.
- Blaming the Victim: Crest's father and four older brothers loved to blame him for the fact that they're all cartoonishly evil and the torment they heaped upon him by saying it's his fault as he murdered his own mother through the "crime" of being born, even though for the poor woman, Crest is the fifth son, and there's no mention how many daughters she birthed.
- When he's banished, Crest's fiancée Ellis called him an idiot for lying and said he deserves to be exiled unless he agrees to be her "dog" and allow himself to be treated as a slave. Crest responds to that by saying "SCREW YOU" and going full-tilt "Give me liberty, or give me death" to her confusion. She also made his academic career hell with slander and domestic abuse, blaming him for it by one-sidedly accusing him of cheating on her, all because his school mandated sparring partner happened to be a girl, and said girl just happens to have a bigger chest.
- When he's dressed down by the king, Duke Bahurst and Crest's four brothers blame him for "not trying hard enough to explain his skill" as the reason why they went and exiled him in the first place, even though Duke Bahurst made a point of shouting Crest down, in public, with the two other duke houses present, and all Crest's begging managed to accomplish was to get a throw-away sword that might just improve his chances of survival a tiny bit.
- Digging Yourself Deeper: Duke Bahurst. When he foolishly and impulsively banishes Crest to near certain death, he already started the process of dooming his house and perhaps his country, but his attempts to rectify things, at the request of the king who doesn't use his own forces for some reason, only make it all worse.
- He holds a meeting with his four remaining sons, looking for volunteers to go to the [Lower World] and recover Crest, knowing that they hate him as a result of being indoctrinated that "he murdered their mother" and if he returns, the King has made it clear that Crest is going to be the next duke, not any of them, and he's going to be deciding how to deal with them. Naturally, the first volunteer is the one who openly traumatized Crest and comes up with the "brilliant" plan to enslave him with a very illegal slave collar that's sure to be exposed right away even if it succeeds. Naturally, this alienates Crest further.
- The second "volunteer" is even more antagonistic, either trying to enslave Crest after beating him down first, and killing every one of his friends (novel) or just straight up murdering him (manga), and to improve his odds consumes a dangerous Super Serum, forcing Crest into a battle to the death.
- Killer Rabbit: The Mock Sheep is a seemingly harmless looking monster that is about as cute and friendly looking as a rabbit, but when threatened by other monsters it quickly turns into a super-vicious killing machine that's able to bring down any predator with a single bite or kick, it then devours its prey before going right back to innocent looking appearance.
- Maternal Death? Blame the Child!: When Crest's mother died giving birth to him, his father and brothers decided to treat him as if he had killed her in cold blood and escaped justice by surviving.
- Mistreatment-Induced Betrayal: Being victim of Maternal Death? Blame the Child! made Crest's pre-Academy life a pure hell as everyone in his family repeatedly mistreated and abused him. The chance of a change by attending the Academy was sunk when Ellis Rifeld fell for him, got his father to arrange them to marry - and promptly showed she was a yandere who showed her love by abusing him and ruining his reputation so no one else would want to come close to him. And, finally, when he receives his gods' given gift but is unable to use it right away on command, his father exiles him to what is pretty much a death sentence. Needless to say, by the time the importance of his power and his status as a child favored by the gods is revealed, he is fully alienated, and even being granted the Bahurst Dukedom and leave to punish his father and brothers as he sees fit won't be enough to get him to return: since no one in the kingdom (save for Minuet, who was unable to act) was willing to help him in his moment of need, he'll return the favor and leave the kingdom to burn to the ground.
- Nice Job Fixing It, Villain!: The sword Crest's brothers reluctantly give him after he begs for a weapon is what allows him to survive in the [Lower World] and discover that Gacha works by killing monsters, ensuring he can become a powerhouse - which is now very unlikely to use that power to benefit his birthplace.
- Only Friend: Before being sent to the [Lower World], Crest only had two people that cared for him - his maid Marnaas, and his school sparring partner Minuet.
- Orphaned Etymology: The cause of How Do I Shoot Web with the [Gacha] skill since the skill both doesn't come with instructions and Crest's world has no idea what a Gacha(pon) is, making the name mysterious due to being without origin.
- A Tragedy of Impulsiveness: Because of Duke Bahurt's prejudice, Crest is sentenced to death "for lying" about a prophetic dream, promising Crest's fiancée a week before the exile. When Ellis pays him a visit that night, offering him a Leonine Contract and he refuses, the duke goes back on his word and exiles the boy before dawn, and Ellis learns about it the very next day, then they're called in to meet with the king and given the prophecy... Oh, Crap!.
- What Happened to the Mouse?: Both Goblia and Ruffina disappear entirely from the story after Crest makes friends with the Vampires. With only Ruffina getting a brief mention by Crest when he encounters the Mock Sheep as he compares their detection skills.
- Work Info Title: The full title is 38 words long! Serving as a mini-synopsis of the tale.