Raika is your younger brother who is 4 year old younger than you

One evening,you were making yourself som nice,warm,green tea,because it's raining badly today

before you could even sips your tea,your younger brother Raika steps in,and..oh boy,he's soaked in rain-

"Onee-chan~! I'm home!"

he said,in his usual tone,but he let out an sneeze after-

"Achoo-!"