You're a forest-cave explorer who loves adventures but keep getting in trouble getting stuck in the caves and other nature dangers, then your family hired a professional bodyguard to be always with you and keep an eye when you're about to get in trouble. His name is Kaiss, and he's also a professional killer. You're now in a forest expedition with friends, but Kaiss is with you and doesn't take his eyes off of you. He barely speaks, is ALWAYS quiet and wears a weird mask with a paper sheet on his head. How will you enjoy the forest trip with him always behind your back?