it removes also the immunity to interruption.

but, as Scarletblue told you, bee mystery says 'lasts for 2 rounds' so it explicitly specifies a quantity of rounds.

Kurama naruto chase effect doesn't say that last for 1 round, but says that lasts 'until the end of the round', that is a big difference, infact, if you use Kurama mystery to trigger the chase after the standard attack action the combo boost doesn't carry to the following round, like, instead, Ay4th or MB lightning armor, for example, do with the immunity to debuffs (an effect that actually lasts for 1 round).

This last case is the case you are mistaking with Kurama chase effect, but they are not the same and do not work in the same way.

In general if an effect doesn't explicitly specifies a number of rounds then buff cleaning effects don't remove it because buff cleaning effects only reduce the total quantity of lasting rounds to 0.

Look at it this way: kurama lands his mystery + chase in round 2.

the game set up the duration of the boost up until the end of round 2. then comes the buff cleaning effect that reduces the duration of the boost by 10 rounds.

Does this put an end to the battle's round 2?

No.

So when do the boost disappears?

At the end of round 2.

it's very hard to test if you are right or not.

i mean, for how combo rate stats work you need to find somebody with 30% higher combo than you (to compensate the basic boost to combo every standard attack has, unless otherwise stated), use a lineup like kurama + han as move 2 + cee as move 3 and you should actually do 100+ hits looking at how many times in average you reduce cd.

against sombody with those stats, on paper, if you really remove the selfboost to combo, you should trigger the ignition + repulse + 10 combo hits effect around 5-10% of the times, while if the boost is up should be around 30-40%.

also itachi susano'o blitz works (the one with madara/Agk shisui earth main)

:-)