Saratte Watashi no Knight
From Storm in Heaven:
An anthology of Chiho Saito's short stories. Chapter one is the title story, and it's the sequel to the first short story in "Aru Hi, Knight ni Attanara" ("One Day, While Meeting a Knight") - Masterpiece Collection 4.
1. Saratte Watashi No Knight
2. Honoka Ni Purple - Extra Story
3. Wedding to Yuu
4. Haruru Yoruru