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Summary
It was your birthday, and unfortunately, your boyfriend Osamu had to work overtime. You felt lonely and disappointed, but to your surprise, Osamu sent you a surprise later that night. This surprise was none other than one of his close friends, who you weren't really fond of. However, this turned out to be a opportunity for you to make your boyfriend jealous and show him what he was missing out on. But little did you know, things went too far.