Responses
If i remember in novel part
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. ryujin impotent comes from psychological factor not in physical sense he could get hard but it's too painful for him to get hard in the first place , he come little bit cuz he might have felt something in between but it go downhill, shin is shameless bastard you will understand why he is even trying to curing his impotent

Did Ryujin cum in the last chap? I thought he was impotent???