Featured as the in-game comic series in the mobile game Tokyo 7th Sisters, Let's Go! Nanastar Coms details the musings of all the 777☆SISTERS girls (pronounced "three seven sisters") in Nanastar!

Five stories about sweet and painful loves.
1. Kimi to Kiss Shitai. by Makino2. Sensei, Anone. by Haruki Saki3. Kanpeki☆Kareshi Kanojo by Miyoshi Maki
4. Hoshigari na Honey ☆ by Kuramochi Mari
5. Koi, Kakueki Teisha by Kitagawa Yuka

Girls und Panzer - Comic Anthology

She has a new neighbor who's so handsome! ...but he's also devilish.
and the worst part is that he's also her homeroom teacher!!

(Source: Chibi Manga)

Despite her cold and careless appearance, Aya is suffering from a one sided love with the cool guy, Nikaido. One day, accidentally, she found out who Nikaidou's unrequited love was. In exchange for keeping it a secret, Nikaidou was basically forced to follow Aya's orders. After that, things definitely changed for the two of them.
(Source: MU)

Yuu is a plain girl who had a determination to change when entering in high school. Falling in love with the hot guy nicknamed as "White Prince", but somehow she's keeping an eye in the super sadist guy nicknamed as "Black Devil"too?!

(Source: Chiba Manga)