"A strange, unknown, suspicious woman said she was here to fetch me, I better go with her. What could go wrong?" -Rikio
Though it's quite likely that Rikio will win, but still...
It is common for "chosen one"/OP MC type characters to just simply follow any and every person's request because they simply lack any common sense due to their power. Why even spend that half second questioning someone's motive when they can punch, kick, and slash their way out if it gets bad. It is even worse when they are of the "avid gamer" trope as well because they just default to treating every living being who is not one of their "companions" as an NPC.
smh mm a schemer... minus infinity... rejected go away! rikio slay this loli... well kinda stupid to follow someone very suspicious right? but he said something like he was wanting to meet the blue dragon... so u can say that he did not foresee the random "kill this dragon or die" hidden mission so for me uhh kinda understandable?