Good manga, I wanted to read something like this so much. This thrill, I love it.
Nevertheless, when it comes to ML, he is a bad guy, don't make him a victim. Even if he wasn't completely in his right mind during the rape (rut etc.), it still doesn't change the fact that first thing he did after the reunion was blackmailing her. First thing he should have done was to apologize and explain what happened then, not make thing even worse.
If only this girl wasn't so dumb and forgiving, it would be more enjoyable to read
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