Yuuya's summer life is overturned by 4 girls, 2 of which possess special powers and small wings that occasionally appear on their wrists.

In the *Grace Door* series: 1) Otome Road to Shitsuji to Tobira 2) Shitsuji to Tsumi

John Titor was the supposed time traveller who made headlines in 2000 with his various predictions about the future. A fortune-telling programme he'd allegedly coded had become wildly popular. Despite finding it all rather sketchy, Akio Raraka, a girl harbouring an unrequited crush on Amanogawa Tsubasa, decided to give the fortune-telling machine a go. But when the name of her destined partner appeared, it was...?!

Happy ending guaranteed! Turning into a fish (?), dying and returning to life... Even if they become unfortunate noblewomen, these strong and charming young ladies are not one to give up easily and are always in action! (Source: Kodansha, translated)

An adaptation of the Tales of Zestiria DLC scenario that follows what happened to Alisha after the events of the original game.

Gakkou no Kaidan's story takes place in the Tengurihama Academy, and centers around the male protagonist Yukihiro Kanba who has recently been admitted into the school after being adopted by his uncle. One day, Yukihiro stumbles across Yuuko Kokonoe, who sprinted from the stairs behind him before quickly disappearing down the stairs. After Yukihiro stumbles across the gymnastic club, who attempts to recruit Yukihiro before being stopped by Yuuko, he is forced to join the "staircase club", an unauthorized club that races in the stairs. While he is initially reluctant to join the club due to its bad reputation among students, he later finds the activities exhilarating and decides to join the club. (Source: Wikipedia)

Anthology by various mangaka.

An anthology comic of Slow Start by various mangaka.