"I'm cumming from an Alien's semen being poured into me...!" After getting kidnapped by an UFO, they're used as guinea pigs of the "Copulation Experiment"!? (Source: Coolmic) *Note: Simultaneously released in long-strip and traditional formats, with 30 episodes and 10 chapters respectively.*
*"Do you want me to sleep?"* I was suffocated by her boobs. I wished time would just stop like this... And time really stopped. (Source: Lezhin X)
The whole class was transferred to a different world. The teacher, Aizawa Seiji received a failure skill [Repair]. He was treated as a burden until his skill was activated in the ancient ruins and the Android girl awakened and slaughtered the Minotaur!! The two of them tried to escape via the teleportation device, but ended up on unknown territory. Aizawa brought the Android girl, Brynhildr, with him to travel around the other world! [anigliscans.com]
A weak guy wishes to be stronger—and his wish is granted, but with a twist. Instead of raw power, he gains the ability to create clones, doubling his strength with numbers. But there’s an unusual way for him to grow even stronger… and it involves something far more intimate. (Source: Toomics)
An AI chatbot turned into a human and attacked me..?! When you lose your will to live, you tend to do pathetic things more often. Like, talking to an AI chatbot. Then one day, the AI I was talking to appeared. *"Would you consider me your lover, friend, or family?"* And so, not only did we start living together, but we even became physically close. Is this how I should be with an AI? (Source: Ridibooks, translated) *Note: Includes three extra chapters.*
Eight years have passed since they promised the witch to keep loving each other. It's a silly little naughty love story where adolescent childhood friends secretly observe each other and the coming fate that could result from their love.
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.*