No mecha, no action, no mystery, no paranormal activitites, not sci-fi.
Just normal working life and a very honest goody goody.

From Mangascreener:

Icoro is the princess of a country of eternal night. Her kingdom is surrounded on all sides by huge mountain walls. Snow falls constantly, yet without the warmth of the sun's daylight, it will never melt, only pile up higher and higher. Her people are destined to die out. While she is a member of the ruling royal family, her parents have both disappeared, leaving her alone with her blind younger brother, and crafty politicians hold all the power behind the scenes, leaving her sovereign in name only. Her life has been an endless cycle of hardship, and she has never smiled, not once. In fact, she is missing that part of all humans that knows happiness.

Enter Shiro, a mysterious young boy whose identity is an enigma, even to himself. He is able to forget all but the most vital of information within seconds. All he knows is that he is looking for something called a "Hitogata." After Icoro and Shiro's chance meeting, they end up on a desperate search for the sun that will melt the snow and bring happiness to the kingdom once more.

Will they ever escape the grasp of the corrupt authorities? Will they even recognize what they're looking for, if they come across it? Will this "Hitogata" be the key to finding a sun to save their home? The answers lie ahead.

From Viz:

Shy Chise and nervous Shuji are high school seniors in a small town and have just started dating. But everything changes when Shuji discovers that Chise has been engineered by the Japanese Self Defense Force to transform into the Ultimate Weapon! Soon Chise is torn between realizing her potential as a devastating fighting force and her desire to share a bowl of ramen with her new boyfriend!

In kindergarten, naive Mitsuko began to think of Yoshioto, who was staying at her house, as her papa. And she vowed that she would be Yoshioto's bride when she grew up. Can this dream be fulfilled? In the journey to see him, she slowly understands her own feelings and her heart that refuses to mature, but nonetheless thinks she's already mature. In her search, they gradually melt into one.

Collected short stories from Takahashi Shin.

The first story is a side story of She, the ultimate weapon.

The rest are separated short stories, plus extra artworks of She, The Ultimate Weapon at the end of the volume.

A Saishu-Heiki Kanojo side story, looking at the instantaneous life of Man, and the instantaneous glimmer of machines!!

Haru, a young art student at Tokyo returns home to assist in her mom's funeral. There, she meets Taro, a kid of 14 years of age. With him, she's gonna see some things that will change her vacation completely.

From MangaHelpers:
This is a story of how an esper meets a girl in a small northern town. Tsubasa lives in a dying hot springs town, and he's a mostly friendless middle school delinquent. He actually has super powers, though he thinks of them more like embarrassing and useless powers. Sure, he can use his telekinetic abilities to brush his teeth while getting dressed, or read a book while drinking tea, but for the most part, it's easier just to do stuff with his hands.
One day, though, he hears the thoughts of a mute girl, Yuki, who is targeted for rape by other delinquents, due to her silence. He comes to her aid, and finds that to his surprise, he's able to manipulate her body to beat up her attackers! Unsurprisingly, she draws the conclusion that she is the one with super powers. Since Tsubasa's the only one who "knows her secret," their story together is just beginning!