I'm not 100% sure, I unfortunately returned it because I didn't have enough games for which the kunai would have been worthwhile.
Long story short, as far as I remember it depends on how you use the Kunai, if you connect it directly to the phone the lower USB C port is "hogged" by the Kunai.
However, I don't know if you can use the USB-C port *on the left side* for charging, if so then it would work fine.
However, if someone can prove facts, they are very welcome to add to my answer. :D
Greetings, Donni
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