コツコツ研究所 (けいしきん)
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In けいしきん fan club "けいしきん", you can enjoy special content such as "先輩のおうちにやってきた2".
Sign up with Fantia and support けいしきん!
Currently 1040 fans are supporting.
In けいしきん fan club "けいしきん", you can enjoy special content such as "先輩のおうちにやってきた2".