From MangaHelpers:

300 years ago, the demon lord attempted to take over the world but was defeated by a hero. But now, the demon lord has been reincarnated in the form of a cute girl who doesn’t have any memory of her past. She still retains the same deadly powers, but her only resource is the memory robot assistant. The reemergence of the demon lord also means that somewhere, a new hero has appeared. The demon lord creates a fairy named Mao to locate this new hero who is said to have the hero’s mark on his neck. However, what Mao finds is Alsha, a weak and a little timid young boy. As the cute demon lord observes and guides Alsha through Mao, who she has a direct connection to, in his quest to become the strong hero, she finds that he really is a hopeless young kid. [vyc]

For some unknown reason, which is apparently connected to something called the "World Ninja Record," high school freshman Yaezaka Tatsuko is being targeted by ninjas. Moreover, all of these ninjas are representative "Iga" from various countries. Thanks to her childhood friend, Japan's Iga, Tatsuko is an expert in defeating ninjas, however, she might not be able to overcome the craftiness of America's Iga.

A collection of nine surreal short stories sharing a theme of water. 
Chapter 1, Bon: A young boy ponders family affairs around Bon.
Chapter 2, We’re Still on Our Way: An astronaut cadet must figure out his motivation if he is to succeed and go into space.
Chapter 3, Fusion: When the ultimate form of love is fusion, the government must work to stop a declining population.
Chapter 4, Such Sorrowful Stars: In a near-death experience, a man meets a solitary girl running endlessly.
Chapter 5, Salt Damage Season: A young woman is captivated by marine “vortexes”.
Chapter 6, Sea Weather: A girl follows a schoolmate home only to realize she lives under the sea.
Chapter 7, Squish: A girl can see things she calls “squishes”, transparent blobs all around us.
Chapter 8, Meltism: If we are the same as the planet, what separates us?
Chapter 9, Season・Time・Water: The world adapts to the changing of the seasons.

From AOC Translations: A fast-paced heart pounding, and dangerous sonic love story!

Hina is busy managing the Apricot House in place of her father, but Anzu, the strange boy who lives in room 304 is quite the troublemaker.
One day, Hina accidentally breaks Anzu's keyboard and instead of asking Hina to pay for the damages, he asks her for favour after favour after favour! While this goes on, Hina discovers that Anzu is actually the charismatic vocalist for a super popular band!!! Is the lame weirdo that Hina knows the real Anzu? Or is the cool guy on stage? Hina's everyday life is changing rapidly.

From Paper Dolls Project:

Instead of her father, Hina is the one running the duties of the Building Manager in "Apricot House". One day, she accidentally destroys the keyboard of Apricot House room 304 strange resident. Hina is then asked by this strange guy to run errands for him as reimbursement. In truth, the strange guy residing in 304 is the charismatic vocals of the popular band ...... What will be his true face!? Chicks usually will change rapidly in the face of a cool stage -! Slowly, the world that Hina knows is changing. Experience this speed ​​of sound love story!

From KakerA Translations:
Azusa used to be bullied to the point where she begged her parents to move. In her new school, she's asked out by the most popular guy, Kasuga-kun. Afraid of being bullied again, she agrees.
But, she finds herself falling in love with Kawaguchi-kun and his strength. He gives her hope that she might finally break free from her past and find true love, but Kasuga-kun stares at her possessively with murderous eyes.

Glen and Linus are orphans training to fight for a country on the losing side of a war. Glen has a secret that only Linus knows. Will Glen's secret stay hidden? And what exactly is Linus hiding?

Seinen is quite popular and yet he has nothing he could get himself into and had no experience of falling in love. This made Seinen annoyed with himself. One after school, he found Noiri in the music room, playing the piano and decided to learn the cello from him. It was just something that started from a whim but as they spend time together, Seinen fell for Noiri. But it seems, Noiri is hiding a secret…?

Yuri is a 20-year-old male prostitute. Half of the money he makes goes to paying the huge debt that his father left when he died. His one goal in life is to find his younger brother Nagi, who disappeared after the same car accident that killed Yuri's father and mother. Suddenly a boy turns up, claiming to be the lost Nagi. Can Yuri's long search be at an end? Does Nagi have anything to do with one of Yuri's former clients being murdered?

The valuable treasure, the “Encore” which was left by the legendary Brave Hero Elline, has the recording of the end of the world and the reincarnation of the world. The countries and parties all over the world are searching for the location of its whereabouts; the age to fight for the Encore. The boy called Ren who wants to become a MASTERKnight has no talent in wielding swords despite looking exactly like the Brave Hero Elline, he has been having a lifestyle where people taunts him as the “Fake Brave Hero”. The one that appears in front of him is the legendary Dragon-Princess Krische, who had awoken from her seal. She mistook Ren for Elline. Though she gets disappointed since he simply looked like him, she later finds out a hidden potential in him. And she invites him to the journey to find the Encore together with the Archangel Phia and the Demon-Lord Elise that saved the world before. “Do you want to come with us?”

This is a compilation of oneshots that includes:

1) Untitled
2) Before Dawn
3) Alfalfa
4) 4:30 PM, Sunday//6:30, Afternoon, Sunday
Part 1 - Summer Memories
Part 2 - A Girl in the Brilliant World of a Boy's Daydream
Part 3 - Coming Home
5) The Typical Day and Melancholy of Super-Imaginative A-ko
6) How to Spend a Day Off
7) 17
8) What a Wonderful World
9) Tokyo
10) The End of the World
11) Snakeman and the Great Space-time War

With her parents dead or missing, Azuma has been taken into her uncle's family. However her new family has been harshly abusing her, to the point she has become so mentally unstable she developed the rare syndrome of Alice in Mirrorland, which makes her see things that shouldn't be there reflected on mirrors, water, glass, etc.

Everything begins when the things she sees start affecting the real world directly, and the barrier between reality and illusion breaks apart.

Welcome to the world at the other side of the mirror. Welcome to wonderland.

A short crossover between two manga from Ura Sunday - Mob Psycho 100 and Sekai Oni - drawn by the mangaka of Sekai Oni.

In this world, when you turn 12, God gives you "talent" ... While everyone else was given the cool "talents" of [swordsman] and Witch, the talent that the main character Rivele received was [effort] that nobody had ever heard of ...!? Overwhelming [effort] Rivele aims to be the strongest in the world !!

Atobe Arihito is an intense workaholic thanks to his slave-driving boss, the beautiful Igarashi Kyouka. En route to an office vacation though, their bus gets into an accident, killing Arihito instantly.

His soul is transported to the fantasy world of “Labyrinth Country,” where he’s reincarnated as a “dungeon seeker”! Trying to join a guild and pick a job, he’s surprised to run into Kyouka, who also died and has chosen the job of “Valkyrie”! However, he rejects joining her party and decides to become the rare support role of “Rearguard”! But will he be able to find a party in time?

Mag (Magu) was gifted the skill [Decoy], a skill capable of attracting monsters and causing disasters. As such, he was banished from the city. Therefore, he decided to live alone in a hunting cabin deep in the mountains.
However, there, he draws the attention of Divine Beasts: Loa the Dragon (a beautiful girl), Fiana the Phoenix (another beautiful girl), and Maera the Kelpie (another beautiful girl).
In the end, Mag decides to spend a easygoing life in the mountains with the Divine Beasts. But the skill [Decoy] is not making it easy for him …

It’s been 20 years since dungeons suddenly appeared in the world. Humanity got supernatural powers like Level, Status, and Skill.

Dreaming of becoming rich quickly, Amane Rin, an adventurer challenged to capture dungeons. Even though he possessed a skill unique to even adventurers
Transfer within dungeon
, he was deemed as incompetent because of the poor usability of the skill. However, the turning point for him came.

After a year since he started capturing dungeons,
Transfer within dungeon
evolved with a level up. As a result, Rin became an existence unrestricted by the rules of the dungeon. Rin, who became the only singularity, continued to level up with overwhelming speed and climbed to the strongest position in the world in the blink of an eye.

This is the story of a boy who was looked down upon because of his incompetence but eventually became the strongest in the world.

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Fumizuki Mai just recently moved into town and is starting her new life at school. She soon realizes that the curriculum is really weird, consisting of body fitness classes, undressing classes and extreme combat training. Mai soon realizes that her school is really a location for girls to become the most incredible women on Earth. She meets four girls who are weird but nice in their own way but their craziness and the ridiculous classes just might make Mai go crazy.