You're My Princess
Itsumi is regarded as a delinquent for his looks, despite being soft and awkward. Seima is the School Prince, who is in love with him. When they start dating, Itsumi realizes that he likes being Seima's "princess"
Step One
Shuuichi is an anti-social introvert, and Hana is an outgoing boy, who constantly follows him. When Hana actually leaves him alone, Shuuichi gets upset, and even more flustered when Hana asks if he likes him
Fukigen na Kimi to Kimagure na Kiss
[Spinoff/Sequel of Asatte ni Kiss] Haru is always taking care of his popular friend Kunihiko. When Kunihiko steals Haru's first kiss out of jealousy, they are forced to confront their feelings for one another (with a little help from Akihisa and Yuu).
Karasugaoka Don't be shy!!
Izuhara is the leader of Voice, a crime prevention group in east Karasugaoka. He's also in love with his rival, Shinba, who leads the crime prevention group for west Karasugaoka. But Izuhara doesn't know how to show his emotions, and usually ends up arguing with Shinba and crying about it later.
Sekai Wa Temee De Mawatterui
1-4 Shindou is a nerdy transfer student in a school full of delinquents. Despite the situation, he tries to make friends, and meets Yousuke. They fall in love, despite their wildly different personalities. 4.5-5 Mimori is a high school student who falls in love with his seemingly stoic (but actually very sensitive) teacher. Since they can't be together, Mimori vows to grow up and be a man worthy of his sensei's love.
Yankee-kun To Pantsu No Ouji-sama