Noisy Beasts

After he's kicked out of his gang, Onijima waits for the opportunity to get revenge on the boss he has a score to settle with. During a minor scuffle, he beats up a man who's been tailing him—but the guy returns undeterred, declaring with a feverish gaze, "I'm here to seduce you." When Onijima discovers that this man, who calls himself Saruta, is a high-ranking member of a rival organization to his target… A rough, semi-yakuza out for revenge and a wild, seductive yakuza—thus begins a BL story of entangled schemes and raw desire!

(Source: Web Canna, machine translated and edited)

Original Manga:
cmoa, eBookJapan, Renta!