Higuchi Asuka's mother dies shortly after she tells her teenage daughter who her father is. Only knowing the family name “Sudou”, Asuka goes in search to find her absent father. On her journey, she finds a guy being rather rough with a younger girl. Unable to resist, Asuka steps in by battering the guy with her motorcycle. When she discovers it was a big misunderstanding (Manato was just trying getting his sister Kazusa to go home), she drives them back to their house.
Once there, Asuka finds out that Manato and Kazusa are the Sudou family she's been looking for, but the father isn't there, not to mention their mother also being dead since long ago. With no other leads, Asuka decides to move in as Neesan (the big sister) until their father shows up. Things get tricky when love builds within the complex family relationship....

Zoku Shishunki Miman Okotowari (Sequel)

Summary from Watase's Sorai:

Basically a really cute short story about being happy with the life you have.

A fun guide that teaches the basics of the art of manga by one of the most well-known mangakas in the business! Follow Eri on her journey to "become a pro and inspire people with dreams!"

Takiko Okuda is a strong-willed girl living in the Taisho Era. She needs to be strong -- Oosugi, the one man she's ever loved, is a married man; her mother is terminally ill; and her father, Einosuke, has not been home in over a year. When at last Einosuke returns, it's with a notebook full of Chinese scribblings that seem more important to him than the death of his wife. Furious, Takiko steals away his completed translation -- "The Universe of the Four Gods" -- with the intention of tearing it to shreds, but the instant she opens it, she's surrounded by light... And it is said that this is how the legend of the Priestess of Genbu began.
(Source: ShoujoMagic)Included one-shot:
Volume 6: Ayashi no Ceres Gaiden

Kurahashi Mai is a normal girl who strives to be near her crush, Nimura Hiroki. He's a big fan of Sailor Moon, but is the star of the soccer team and popular. On her 16th Birthday, she is given an electronic notebook fitting for a young girl, that can do tasks like your fortune about your love. One night, she accidentally types "Epotoransu" and a boy called Takuma comes out of the notebook, and who will grant Mai one power for discovering that secret. As the story goes, what'll happen in this story?

-- Manga Updates

After being kicked out of her apartment, YuMi must find a place to stay, or she will be forced to return to her home in the sticks! Can she convince YoungHo to to defy conventional boundaries and allow her to stay at his place, at least until she finishes college?

Yuu Watase Masterpiece Collection Volume 4
Story 1: Suna no Tiara - On their way to Eden, princess Tiara and her subjects are attacked, and only the princess survives. Follow her in her quest for revenge.
Story 2: Hatsuki Triangle: Hodaka Hatsuki takes on the personality and abilities of her old boyfriend everytime she touches a practice sword for the Kendo club. Kunie Kenshi is determined to make her normal once again.
Story 3: 700 Nichi no Blue - Oikawa Masumi tells about her work on a painting titled "Blue Magician" and the man who helped her.