Responses
yes it is in the new chapter 4 years separated and appearantly yashiro isn't yakuza anymore he has his own cazino but Doumeiki is still with the yakuza with one more scar in his face and black gloves -_- i dunno if my analyze is right but this is how it seems so don't be depressed maybe i have got it wrong
So apparently the time skip is 4 years. Yashiro is 40 & Doumeki is 29.