Cosplay Fetish Academy

...What is going on here?

It was a typical afternoon for Ryouji Misawa. He's picking up his cousin Yuuki Mikage from the shrine she works part-time, and Yuuki's younger twin sister Shana is tagging along. They're on their way home when Ryouji looks up and sees a literal bolt from the blue heading toward them. He gathers his cousins close and passes out as the bolt hits him. Miraculously, he survives, but when he and his cousins decide to head down the road home, they are shocked by what they see. (See image to the right.)

Soon, they realize that they are in another world similar to the one they knew, save for some very important differences. Now they must return to their world - but do they really want to leave this interesting, exciting new world behind?

Tropes used in Cosplay Fetish Academy include:

Another Dimension: Where the cousins find themselves transported to.
Broken Aesop: The one the game has is really unsubtle, but its message is somewhat lost in that only women can walk around in fetish gear and look normal. In fact, had it applied to both genders, the Aesop would actually be capable of being taken seriously by the player.
Cool Teacher: Miwa Maika. She believes the cousins' story of their circumstances and promises to help them find their way back. Also a Hot Teacher.
Exactly What It Says on the Tin: An academy where the uniform for the females, both teachers and students, are sexy Cosplay outfits.
Fetish Fuel: Out-of-universe, the game plays to the fetishes. In-universe, in a highly ironic inversion, wearing normal clothes is considered slutty in the alternate dimension.
Fan Disservice: The Bad Ending CG. Brain Bleach please!!!
Fish Out of Water: Ryouji and Yuuki, especially Yuuki. Shana on the other hand takes to it pretty easily since she already modeled skimpy clothes in the regular world.
Hot for Teacher: Ryouji muses that the Maika-sensei back home has a pretty face but dresses conservatively and is kind of hard to approach. Once he sees what she's hiding thanks to the alternate dimension's Maika-sensei, well...
H-Game POV Character: Ryouji starts as a Type III A.
No Accounting for Taste: Maika's idea of good looking male fashion is rather bizarre.
In a World where the motto seems to be "If you've nothing bad or evil to hide, then there is no need to cover up," wearing lots of fabric is a crime.
Kissing Cousins: The Yuuki and Shana options.
Lightning Can Do Anything: Including send you to alternate dimensions where the Theiss Titillation Theory is enforced by law. As awesome as that may sound, don't try getting struck by lightning at home.
Miko: Yuuki.
Multiple Endings: Six good ones and one bad one.
Teacher-Student Romance: Maika tries to avoid this in her story (weakly, at that), but considering she's an option, it's useless. The Harem Endings crank this Up to Eleven
Tsundere: Yuuki
Twin Threesome Fantasy: Explored in the Harem Endings.