Gensо̄kyо̄ Mid-Autumn: Mooncake☆Theft Incident (幻想乡中秋 月饼☆大盗事件) is a Chinese-language Cookie☆ voice drama, directed by “Shìguān Cháng Zhōngjié” (士官長終結), published on October 22, 2017,¹⁾ then translated.²⁾³⁾ It has the short name, Mooncake☆ (月饼☆).⁴⁾

The story begins with Eientei preparing to hold their 'Lunar Capital Expo' during the Mid-Autumn Festival, when Marisa accuses Reisen of stealing mooncakes based on a sketchy photograph. Eirin would then intervene to disprove her accusation, then Reisen and Marisa interrogate Tewi in the Human Village, but Tewi had a receipt indicating that Kaguya bought their mooncakes, seemingly absolving both of them.

Shortly after, the three would proceed to visit Kaguya, a NEET holding a zero-viewer broadcast, then Marisa begins panicking as she wanted to gift her mooncakes to Alice. The story then cuts to the Expo, where the two male attendees recap the gossip, alleging that Ringo had paid Tewi to stash the stolen mooncakes at the Moriya Shrine. At the end, Tewi and Reisen reconcile, then Alice kisses Marisa.

• Before release, the early tentative names were: 'Chuuka☆' (中華☆)⁵⁾ and 'Mocchi' (モッチー☆).
• Marisa speaks with a Guizhou dialect, and Kaguya speaks with a Cantonese dialect.
• For the record, Reisen does have a 'Mind Shaker' spellcard, but most translations usually render it as 'Red-Eyed Hypnosis' (赤眼催眠) despite 'Mind Shaker' (マインドシェイカー) as the ruby.
• Both the Japanese and English translations are 'sloppy' or 'loose' (ガバガバ) from what I can tell.

• Half-Life☆ - Yōyō had a few English-language line in this voice drama.

• Gensо̄kyо̄ Mid-Autumn: Mooncake☆Theft Incident on Bilibili
  • Gensо̄kyо̄ Mid-Autumn: Mooncake☆Theft Incident on Niconico Douga - English subtitles.
  • Gensо̄kyо̄ Mid-Autumn: Mooncake☆Theft Incident on Niconico Douga - Japanese subtitles.
• Mooncake☆ on the Cookie☆ Explanation Wiki