¡Tohokudaigaku Kawashima Ryuta Kyoju No Mainichi Tanoshimu Otona No Drill "No Hogushi" to "Tango Kioku" De Kioku Ryoku Wo Kitaeru 30 Nichi
¡Kawashima Ryuta / Cho
Description
[Machine Translation] The book provides training aimed at increasing brain speed and memory.
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