Arithmetic Inc.

Subsidiary of Aeria that creates mobile dating simulation games for women; it owns the BlackButterfly and honeybee brands following Asgard Inc.'s dissolution.

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Ikenai Keiyaku Kekkon ~Kyuukyoku no Sentaku~ ★ 6.0 · 2011 · Arithmetic Inc. Bakumatsu Midarezaki ★ – · 2011 · Arithmetic Inc.