I'm really sure that Fei Long is planning on something.
If this was an important stepping stone and not only to bind the end of the warehouse fight to the beginning of the new arc, than the stepping stone must be in Fei Long's action as Asami and Akihito simply do not act here (they can't).
I read this before somewhere and it combined with my impression that Fei Long was on the verge of doing something. Of trying to sort the whole problem out himself, because he wants to protect Asami and Akihito and the relationship they have.
Probably as someone stated, because he thinks that he will never have such a relationship/love himself :(
Frankly I adore the mafia war plot like others are suggesting, after all this is a yakuza story plus wild sex and a bit of romance....I just love it!!!!!
Now after seeing the translation of all the complete chapter I possibly have even more questions.....mangaka said this is important chapter to understand what comes next so I think anything is possible..... is the relationship Mikhail / Fei going to change balance in mafia groups? Because Fei may not be too attached to Mikhail, not even after sex, but Mikhail is really taken by him, maybe not in love but we already know how far he could go for him, plus add the thing Mikhail thinks Fei still has feelings for Asami, that's what Mikhail thinks and we know it, true or not,so.....or is the key of the chapter in the sentence "you're life is mine to take"....which gives me shivers....I mean of course if Fei wanted Asami dead he already had all the time so that's not the right meaning but still I ask myself which is the clue we need to understand the story further, because mangaka said so, I wonder....well basically she has material to go on with the story for a loooong time, a very looong one