Clear Up After Rain

Clear Up After Rain (あめのちはれ Ame Nochi Hare) is a manga by Bikke (びっけ). The story centers around a group of five freshman high school boys who obtain a condition that turns them into girls for a period of time till they change back.

Summary
Upon the thunders of a spring storm on the day of their school entrance ceremony, five high school freshman (Hazuki Yamanoi, Touma Kisaragi, Junta Goromaru, Madoka Sakonji, Yuusuke Maki) acquire strange special properties of their bodies. Whenever the rain starts to fall, they turn into girls, thus compromising their club activities, love lives, etc. As they begin to analyze the situation in more detail, they find themselves running out of leads to follow. A confusing tale of love, mysteries, and secrets interwoven on the stage of the prestigious Amagai Boys' Academy and  Amagai Girl's Academy with an ensemble of cast of gender changes.

Plot
Warning: Spoilers