Question about division soul attack

I was wondering if anyone can confirm if Corsair and Jett card extends duration of the summoned soul from Eunwol's skill? If so would it be useful to get a Jett and Corsair to 200 for the cards and form a SS pirate deck or what other card combinations would be useful for Eunwol? Thanks for any feedback.

It's summon duration not debuff duration. It doesn't work.