Two couples, both led astray by lust, get a novel idea and decide to swap partners.

It doesn’t go over well.

(Source: MangaDex)

Hanatori Suimei, a ronin, came to his aunt's house to study for the next university entrance exam. Turn out the place he will be living in is a kindergarden ran by his aunt. There, he meets Aiko, an 8 year-old girl, Haru, a teacher there, and many other children. How will his relationship with Aiko, with Haru turn out?

*Includes a side story called Same Sight in volume 1.

The story begins when Muu moves into the Ashitaba residence as the new husband-to-be for their older daughter Hinata. But things won't be easy with the wedding preparations, a mother-in-law that has no sense of delicacy, and her younger sisters Asuna and Shion; and their eccentric aunt Megumi.

This is not the typical harem-like manga, as Hinata's mama adds a "plus" as her caring nature really creates hilarious situations.

In an era of space travel, there is a small restaurant in Jupiter's orbit named after its owner, Motoka. People coming to or leaving the stars come through her small restaurant, and she always has something to serve that speaks to her customers' hearts and memories.

Takatou Iori, a high school ninensei, was on his way to school to confess his love to classmate Kusanagi Mikuru with a love letter, when he gets ran over by a truck to save a cute elementary schoolgirl.

Summary as of ANN.com:
Main character was a normal high-school 2nd year student, one day while going to school he prevented a accident, but he died saving the little girl. But a passing scientist of justice(Self-proclaimed) saved his life, but due to a lack of part(According to the scientist) he's now a little girl~

About a housewife that has moved into a new town trying to adjust to her fairly new married life with certain quirks and encounters with neighbours along the way.