Spin-off manga of Yuru Yuri following the four teachers of Nanamori Middle School – Shihoko Azuma, Nana Nishigaki, Tsubasa Minamino and Hatsumi Kitamiya – in their high school days.

1. Aria's Egg (Itou Hachi)
2. My Friend's Little Sister (Namori)
3. Melon melon (Takemiya Jin)
4. Because I'm an Adult! (Nonaka Yuu)
5. The taste of my first kiss (Irua)
6. Leave It to the Super Maid (Takeshima Eku)
7. Princess Knight and Familiar (Takano Saku)
8. The Mistress’s Selfishness (Homura Subaru)

Araki Jin, a high school student whose parents are archeologists, finds a lamp in a package they sent him. And guess what happened when he polished it! The academy's idol Zadou Sierra abruptly appeared! What's more she is dressed in a maid outfit!

The story is set in the same school as Yuru Yuri.

Hiro is an ordinary first-year student who enjoys her quiet school life. One day, she picks up a drawing by Toshinou Kyouko which causes her classmate Aoi to mistake Hiro for the artist. Unable to clear up the misunderstanding, Hiro is persuaded to create a doujin game together with Aoi-chan.

A spin-off of the Yuru Yuri series featuring Sakurako and her sisters.

The club room of the defunct Tea Ceremony Club has been taken over by a 4-person group calling themselves "The Amusement Club". A full-bodied comedy, overflowing with love, it's guaranteed to give you the energy to live healthily and heartily for tomorrow.

*Contains the story Hearts Melting Together in vol. 2.