From Midnight Scans:

A collection of 5 oneshots:

1) Shitsuren Biyoushitsu
She breaks the school's hair code because she wants to be noticed by the teacher. But, her teacher is transferring...

2) Itsuka Suki to Ieru Made
Tamao grows her hair in order to look like a decent girl, but...?!

3) Kono Koi wo Mousukoshi Dake
Nana and Nene are twin sisters. Nene's always copying Nana, and...?!

4) Kimi Iro Destiny
Having red hair was my complex. You told me that it was the red string of fate...

5) Shitsuren Mobius
Kirie goes to the Shitsuren Biyoushitsu. That is because of her hopeless love towards her sibling...

Ch 1-3 Renai Kyoushuujo
Ran is terrible at love and is always getting rejected. Today’s rejection was witnessed by the most popular prince at school, Takashina-kun! Ran thought she came off as an idiot, but with Takashina supporting her efforts, Ran falls for him! That night Ran left for home late and in a seemingly empty classroom, she encountered a mysterious man in a military uniform. Did Ran discover the love training institute?
Ch 4 Unfinished Love Song
Ch 5 Forgotten Things
(Source: Starry Heaven)

From : Shoujo Crusade/TCmanga
Marie always puts herself back, lies to her friends that she's a love master. Manami, Marie's bestfriend, trusts her and asks her and her boyfriend to go to a double date. Marie who doesn't have any boyfriend gets panicked and at the end she asks for Yamato's help. Yamato is willing to help her, but... with payback!

Keita, a hairstylist and a former gangster, suddenly asks Arimori Tsukasa to be his model after seeing her beautiful hair, but a street flirt comes and Keita saves her. They gradually become friends, but will there be something more?