A story about a plain girl who graduated from her virginity after she got invited to join an unfamiliar drinking party, and a shallow playboy of a senpai — who had the kind of presence that she couldn't quite handle — who took her home with him to have sex.

As this work leans more towards the feeling that she's gently getting swept away and giving in to pleasure, there isn't much that makes it look like she's being forced to do it.

(Source: DMM)

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[Note: This has 2 near-identical versions, one is the original doujinshi, the hardcore version which has black bars; the other is a fully censored softcore version, published by Night Comic; The covers are slightly different but the story is the same.]