Prism Time

Info from here (and there's lot more info about the two volumes there): This is a collection of manga short stories done by Takeuchi Naoko, from her debut in 1986 through her first work after the completion of Sailor Moon in 1997. V.1 • Gradation 1: Tamaki - Peppermint • Gradation 2: Saura - Sunset • Gradation 3: Mizuki - Moonglow • Gomen ne Wednesday (Sorry Wednesday) • Liner Notes V.2 • Rain Kiss • Yumemiru Rainy Button • Secret na Kataomoi • Love Call • Yume ja nai no ne