A Lovey dovey daily life with ara~ ara~ wife who can do time leap

Tokina is a self-proclaimed Timeleeper who loves to pamper her husband, Nobumichi. But today, there's something wrong with Nobumichi! While her husband accepts her sweet behavior without embarrassment, Tokina's flirting gradually escalates...?

Usami Nagisa is a yankee who suffers from a rare disease which causes her health to decline if she feels lonely. Sewa Natsuhito, the boy who sits next to her in class realizes this and keeps her company, but the only way Usami believes she can cure her illness is to make lots of friends, a process she might find harder and complex than she initially would have hoped.

Touka Aizuki is girl who can turn invisible and no one can see her except for one person, Ryoutarou Mimori.
Even though she is physically invisible, her love is completely visible!

One day, Shiro and his little sister, Koyori, who has been permanently crippled after an accident, download a peculiar game called "Strings Dolls." Whenever you have someone in your camera screen, the game allows you to move them around like a puppet. Shiro and Koyori are filled with joy to realize that this magical game can restore her ability to walk, at least temporarily. However, other people use it for much less noble purposes. Among the others who have downloaded the game is a mysterious player called Miyabi, who appears to use the game for PKing. Will Shiro be able to track down those behind this game and find the murderous Miyabi before it's too late?

In the future, the government "recycles" dangerous criminals instead of executing them. Their memories are erased, their personalities are replaced, and they are sent back to their original life as a new person. With this process, there is an extremely low rate of repeat offenders.

Kou has just gone home to his big sister after receiving his punishment for committing murder. He has a little notebook to use in the absence of his memory, which details his life and relationships. However, his friends at school seem to doubt that he's actually the perpetrator. Will Kou be able to uncover the truth behind the murder he is believed to have committed? With no knowledge of his previous life, how can he tell who to trust?

Adapted from a visual novel. A girl who can capture the memory of whoever she's in front of by just looking into their eyes.
A childhood friend who lives with two red-smeared eeirie dolls, convinced they are her parents.
A sickly little sister who manipulates persons by just smiling.

The protagonist meets these girls who lack something, and gets involved in strange events.
This slowly gnaws at his heart, like tracing with a fingertip the reminiscences of a distant day.

A sad, and somewhat nostalgic, story about memories.

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From MangaHelpers:

Shishikura Shigure is an ordinary high-school student, who is into gal games, figures, and late night anime. He tends to be pretty oblivious of most of his actual surroundings, particularly at school. Since his parents have gone overseas for work, his childhood friend Koyomi has taken charge of caring for him. One Wednesday, one of Koyomi's friends is missing, and she seems overly concerned. She explains to Shigure that one month ago, a student at their school threw herself in front of a train. On every Wednesday since then, a girl at their school has killed herself. She warns him not to get involved, but Shigure decides to look for Koyomi's friend.

Shigure ends up at the scene of the crime, where he sees a darkly mysterious girl who claims she can peek into people's memories. Shigure learns later that she is the student council president, but why was she so cavalier about her classmate's death? Could she be involved, and will Shigure be able to stop this string of supposed suicides? [tethysdust]