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| 07th Expansion | |
|---|---|
| Industry | Sound novels video games |
| Founded | 2000 |
| Headquarters | Japan |
| Products | Higurashi When They Cry Umineko When They Cry Higanbana no Saku Yoru ni Rose Guns Days Ciconia When They Cry |
| Website | 07th-expansion |
07th Expansion is a Japanese dōjin circle — a group or collective that self-publishes fan-made or original creative works based on manga, anime, or other cultural works — that specializes in the creation of visual novels. The group began by creating works based on trading card game Leaf Fight, and is now best known for creating the game series When They Cry.
07th Expansion initially produced original cards for the trading card game Leaf Fight, selling them at events such as Comiket, where the circle met BT, who later managed their website.
After two years of selling cards, the group considered shifting to another medium. Around this time, the commercial success of Type-Moon's Tsukihime inspired doujin circles like 07th Expansion to create visual novels. Co-founder Yatazakura began learning the NScripter game engine, and together with Ryukishi07, the group adapted Hinamizawa Bus Stop—an unproduced stage play written by Ryukishi07—into their debut visual novel, Higurashi When They Cry.

Rena Ryukishi is the company mascot. At first, she wore something resembling armor before changing to a uniform in the style of Pia Carro. Her fourth outfit eventually became the uniform of Angel Mort, a fictional restaurant in Higurashi When They Cry. She was officially introduced in Higurashi When They Cry as one of the main characters under the name Rena Ryūgū.
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