第12話: 正純と紗霧が紗霧の仮面ストリームフェスティバル中に新作『セカイモ』のプロモーションを行う

Masamune and Sagiri's new work, "Sekaimo: The World's Cutest Little Sister" is now on sale. Sagiri continues to stream from her room wearing a mask as always, and declares the curtain rising on a "Festival." (Source: Crunchyroll)

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