[AIM] ボクのお兄ちゃんが『妹観察記録』を作っていたのでエッチな知識ゼロのフリして色々されちゃった話 [英訳] , [AIM] My Big Brother Was Making a “Little Sister Observation Record,” So I Pretended to Have Zero Sexual Knowledge and All Sorts of Things Were Done to Me [English] [LAYON]