![](https://pic1.mangapicgallery.com/r/avatar/72/u639857_50x50.jpg?2)
This flashback actually gives us a clearer insight on his background as well as the truth behind the death of Yoshino’s parents. There were speculations about whether he Karishima had something to do with it because he knew more than he let on and we now know for sure what’s what. Plus like @plinky25 said above me, he’s injured so it’s a good way for readers to gre the time pass before he actually wakes up.
literally where is this manga even going anymore. It's just another flashback showing how warped Krishima is. which was known. It's been hinted everyone in the Yakuza space in this comic is off. But it's just delaying the plot again to explain why did yoshino specifically get the same vibes from her kidnapper and him. and what's their connection. just waiting and waiting for the big plot twist...