From Intercross:
Prelude to the oneshot Kimi Machi Bus (in Koi ni Naru Made)

“Let’s be lovers when we are grown up”,… It was a promise between Mitsuru, a boy next door, and me. One day, Mitsuru transfers to my high school! He has a twin brother, Ryo. But then Ryo kisses me unexpectedly…?!

Sai is always surrounded by girls but treats her with a certain distance. So why does he suddenly kiss her one day? And so why, oh why, is she so interested in Sai?
(Source: Alice Dreams)

I've always, always longed for this. Fancy gossip with friends. And my first love. The girl who thinks this, Ayumu, met the sparkling boy Kanata. When she sees him, her heart beats fast and her chest feels tight. These feelings... is that love?
(Source: Chibi Manga)
Included one-shots:
Katakoi Iro, Love Ego

From Jshoujo Scans:
"When I think of you, I can't soften my heartbeat, and I have the urge to cry out loud---"
The "Mighty Ice Prince" Hirano, who can do everything just perfectly, confessed to Koito.
However Koito, who is capable of doing everything clumsily, never thought Hirano's confession was serious...? This story is about all the first times Koito and Hirano experience together.

Ever since elementary school, Sakura has been tormented by her classmate, Kou. He teases her and calls her ugly. He totally hates her! However, now Sakura discovers this may not be true after all when one day, Kou kisses her! What is he thinking!?

Collection of short stories:
? Koi ni Naru made
I thought that I'd never ever fall in love with him!! And yet... (>_<)
Falling in love at first sight with Kirishima-kun during the opening ceremony, Jun decided to give it her all and confess to him. However, the one who came to the meeting place was Kirishima Ei in her class! Moreover, he said OK to her confession?! It's too late for Jun to tell him that she got the wrong person, but...?!
? Kimi ga Boku no Taiyou
Ai reunited with her childhood friend, Ichiki. Can they clear up their misunderstanding and confess their feelings to each other?
? Koi no Kakera
She can finally be with her beloved one but it seems that he had other person in his heart. What would she do? Try hard to make him fall in love with her or just give up?
? Kimi Machi Bus -
Kae suddenly recieves a confession from a very popular guy, Katagiri-kun. Even though her friends tell her not to, she still accepts the confession and start going out. It is then Kae realises just how popular Katagiri-kun really is; will she still be able to have the strength to continue being his girlfriend? (A chapter connected to KATAKOI IRO)

Tamami is shy, clumsy and slow at everything. Everybody around her and Tamami herself think that she is good for nothing. That’s why Tamami can’t believe that Mitsui-kun, cool and good-looking guy from her class, likes her. It must be some kind of misunderstanding. Or is it not?
(Source: M-U)

My name is Kohi Nataan. My parents are working overseas and left me to live with my grandma. However, she was suddenly hospitalized leaving me as the manager of the lodging house! Furthermore, there are three cool guys lodging! Ba-dump. Ba-dump. But, one of the three guys, Ryuu-kun, seems to be hated for some reason... What for~?! (Source: Manga Abyss)