Kazuha Akiyoshi is the eldest of six children. Highly responsible and irresistibly cute, she is also something of a tomboy who never allows her softer side to show through –– until she meets Mizushima, the first guy to treat her like a girl. Kazuha has her first real crush; will it be reciprocated? Then there's Sugimoto, an older guy who wants to be an important part of her life — but he's the one who Kazuha hates more than anyone!

Sequel to Sekai de Ichiban Daikirai, the main character is Matsuoka Senko, Kazuha's best friend. The story is about the relationship between Senko and Honjo Tooru.
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featured Sekai de Ichiban Daikirai (i hate you more than anyone) main Character, Kazuha and Maki.

From Girls' Generation Scanlations:
Yuiko is an average high-school girl who just has one wish: for her lips to stop being chapped and become smooth and soft! By a chance encounter, she enlists the help of Sugimoto Mana, the school prince who is one year her junior. Can Mana help Yuiko with her dry and chapped lips and will they also find love in the process?

Note: Featuring the children of a couple from Hidaka's I Hate You More than Anyone (Sekai de Ichiban Daikirai) manga.

Ageha's older sister is getting married. But Ageha, who suffers from an enormous sister complex won't accept it. One day, in order to get Ageha more involved in the wedding preparations, her sister takes her to Velvet Blue Rose, a shop run by Yukari and Mitsu, a two-man team that design and make wedding dresses. Ageha, who's favorite activity is making exquisite purses for her friends, falls in love with the shop immediately. Will Ageha get over her sister complex and lend her support to the wedding? If Yukari has anything to say about it she will!!

From Impossibility:

High school student Hasumi Kei has only one goal in life--that is to visit her classmate Kanzaki Kyosuke's apartment! Seeing how the two do not know each other, Kyosuke refuses to allow her to be anywhere near his apartment... But Kei is relentless, demanding to get her way... but why?