Ato no Matsuri

A collection of mildly ecchi stories focusing on crossdressing high-school boys and the boys who like them, mostly from the boys-in-skirts (otokonoko) magazine Oto☆Nyan.
? Raising Decoy 1-3
A boy helps his classmate go undercover in drag to catch subway gropers, and finds that he looks disturbingly good in a dress....
? Ato no Matsuri (retitled Spilled Milk in the English edition)
A group of male students, having failed to get girlfriends, are becoming desperate; what will these "innocent" boys resort to?
? Tenshi no Houbutsusen (Parabola)
Baseball-themed romance short.
? Actress
A boy joins his high school's film club to meet the actress from their amateur film, but gets a surprise...
? Shishiza no Boku to Natsu no Yozora (retitled Leo and the Night Sky of Summer in the English edition)
The president of the school astronomy club wants to catch UFOs.. maybe some "sexy female alien" costumes will help?