 If you liked
Okane ga Nai
|
 ...then you might like
Bi no Isu
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First 3 chapters in Bi no Isu and OgN revolves around mafia world, where seme has high position in the family and sometimes acts violent yet caring. Although ukes are completely different, as the story in OgN goes on, they both stick with their semes and don't wish to let go. Both uke are in a way saved by their seme and that started their relationship.