The kagero fruits look just like dried American Sweetgum fruit (gumballs)
Here's a neutered link, since the embed kept complaining. imgur.com/gallery/spikey-i8v11PO
I can cut him a little slack since he 1) nearly died from fall 2) Healed a DRAGON!!!! 3) Got healed/supercharged/overcharged by dragon blood 4) Is suffering multiple instances from boobage overload 5) Just killed an S-rank dungeon boss. However I would hope he would get his head straightened...