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From [MangaHelpers](https://www.mangaupdates.com/groups.html?id=1011): Hida Kizuna possesses the HHG (Heart Hybrid Gear) ability, but it is not strong enough to make him particularly important. His older sister calls him to transfer to a strategic defense school, where many of the students (many of which are large-breasted girls) use their HHG abilities to fight invaders from another world while wearing extremely skimpy pilot outfits. Kizuna's fighting ability doesn't measure up, but his sister has another plan-- apparently having erotic experiences with Kizuna will allow the girls to replenish their energy or power-up. It looks like his new school life is going to be full of embarrassment.
The future. The people that migrated to an alternate dimensional space, seeking a new world to live in, started an armed rebellion in order to declare independence from Earth. Thus, multi-dimensional war broke out with the United Army of Earth. The battlefronts spread, and the fight grew long. In their desire to break the deadlock, the United Army of Earth decided to launch a large-scale offensive, deploying to the front line vast amounts of "Assault Girls" -- new arms that would render all previous weaponry ineffective. Piloted by outcasts and criminals, the members of the The 13th Independent Assault Girl Hunting Platoon -- dubbed "The Hyena Platoon" -- are tasked with hunting down and destroying rogue Assault Girl pilots, who have succumbed to the corruption that eventually befalls all pilots.
Left to himself at an early age in the slummiest parts of today’s Japan, Kiichi learns how to survive on his own. As a teenager, how can he adapt to a society whose rules he rejects? Unless he creates his own rules… Kiichi, a raw icon of strength and integrity, stands alone against the world’s injustice and becomes an unforgettable character.
Viviana Lorentz, the Duchess of House Fortuna, becomes utterly displeased with her far-too-rigid husband, Alto Fortuna, the duke who rarely entertains her at night. When she finally snaps and clashes with him, she ends up tumbling back in time, exactly a month before their destined marriage. Determined to escape the marriage this time, Viviana requests to call it off, only to be taken aback by Alto's firm refusal. As a final measure, Viviana decides to make a rather lustful "deal" with her current fiancé, not realizing she will end up facing his unexpected secret. (Source: Manta)
Irae wakes up in the hospital, married but with no memory of the wedding or her husband. To everyone else, he’s the perfect man, but to her, he’s a tentacled cosmic horror! Bewildered by the gap between memory and reality, she wonders... Is this really just an aftereffect of her accident? (Source: Manta)
You are now the protagonist! The secret of the 15 minutes is revealed. (Source: Toomics) *Note: Includes one extra chapter.*
The same girlfriend in 2 different ages?! The young version of her came across time to meet me in the present. A story of a guy stuck between his past and present! (Source: TOPTOON+)
A fantastic duo of a political master and a complete novice! I’m Gu Yeongjin, a six-term congressman — the pinnacle of South Korea’s political world, the nation’s hope! One fateful day in 2008, betrayed by my closest aides, I faced a special investigation and chose to end my own life. When I opened my eyes… it was Seoul, 10 years in the past?! Now a ghost, no one can see me or hear my voice. No one... except one person, Cha Jaerim, a 25-year-old Level 9 civil servant. No connections, no money, stuck in miserable circumstances... But look at that ambition, that fire in his eyes... I like it! Fine. I’ll make him my partner. *“You need to go into politics.”* And I’ll get my revenge. A political genius ghost, Gu Yeongjin, teams up with a clueless rookie, Cha Jaerim, for the ultimate combo in (Source: KakaoPage, translated)
From cooking skills to blowjob techniques, it’s Chang-nam’s job to make sure the robots at his training facility know how to act both in and outside the bedroom. But teaching these robots how to please their masters proves to be more complicated than programming a few commands… (Source: Lezhin US)
I did it for the money...! But if I could turn back time, I would stop myself from entering that shop...! (Source: Toomics)
Jinsoo, an engineer specializing in augmented reality, has always dreamed of using the technology in creative ways. So when Solmi, a camgirl, asks him to develop adult content for her live stream show, he’s presented with the opportunity of a lifetime. He finally has enough money to research and design at his will, whether it be holographic clothes that allow people to walk around naked in public, or gadgets that boost orgasmic pleasure. Tune in to Solmi’s channel for some hot, high-tech porn. (Source: Lezhin US) *Note: Chapter count includes a prologue and 10 side stories.*
"A paper written by a bottom-feeder like you isn't even worth reading." A world where the superiority or inferiority of innate skills determines everything in life. Kazuki Shindo, possessing only the weakest skill, fell into ruin with no chance of a turnaround and was forced to live in the back alleys. If only his research were recognized, the world would surely change. His hopes were in vain, and he lost his life in the back alleys halfway to his goal. However, when he came to, he had regressed 70 years back to his student days, retaining the knowledge and techniques of "Tuning"—the research achievement he staked his life on. "With this... I can change things." From that day forward, Kazuki and the world around him completely transform. Overpowering with true strength those who despise him as trash capable of only the weakest skill, he climbs the hierarchy of an academy where talent is everything. This is the story of someone with only the weakest skill overturning his rock-bottom life. And it is the story of him destroying an academic-centric society where everything in life is decided the moment one is born. (Source: Translated from LINE)