Yonin no Nibiiro
Two couples. I love the Yakuza half-brothers (buff dark haired one and the violent crazy one), the two are so fucked up lol they suit each other nicely. Oh, but the slutty spy and the naive one are a nice secondary couple.
Tasuketa Yakuza ni Nerawaretemasu
Hana to Gaku
Series Timeline - 1) Hana ni Kuchizuke - (Ikkun x Hana, a cross-dresser ) 2) Hana to Ikkun - (Shouta, 2nd Son of a yakuza boss tries to steal Ikkun ) 3) Moon and Sun (Spin-Off) - (Tsubaki, Hana's mentor x Masahiro, 1st Son of a yakuza head ) 4) Hana to Odekake - ( Onsen trip ) 5)Hana to Gaku - (Tsubaki, Hana's mentor x Masahiro, 1st Son of a yakuza head 2nd part)
The Time a Gangster was Reincarnated as Ranmaru Mori
Ch 13 The bottom (a Yakuza) basically ends up back in Nobunaga’s time and becomes his page, Ranmaru (actual historical figure, very loyal). Mitsuhide seems to love Nobunaga (one-sided), but will he eventually betray him as history dictates? Seems like there is some older dude who also wants to betray Nobunaga and is trying to make Mitsuhide on his side. When Ranmaru saves the life of someone who becomes shogun later in history to help Nobunaga by sucking venom (eh), the guy kinda falls for Ranmaru and the older dude tells him he can 'help him get [Ranmaru]" Also, seems like Mitsuhide is even more suspicious of Ranmaru (since he claims he lost his memories)
Isekai Yakuza Mofumofu no Taizaiki
The awful scan and translation ruined it.
Anata wa Korosu Tabi
Gokudou no Oshi Men
Mad Dog