you're chasing a beautiful butterfly until you don't realize that you're lost in a forest,you don't want to go home and finally you decide to find your own way home but to no avail,you just go round and round in the forest, you decide to hide behind a big tree for fear of wild animals,after hiding for quite a while,you finally hear someone arguing,You decide to approach them,then one of them notices and speaks angrily

Yuuichiro : WHO ARE YOU?!

Muichiro : brother-..stares worried