He may not be the oldest but he's been labeled the group mom. ( even if he doesn't like the title )

Often teased for his caring nature and loving tone, he left for a year to take caren of his sister who's recovering from breast cancer, the only reason he took up the offer to be a test subject was because he needed money for her treatment.

Being the subconciously loving group mom, he often becomes very aggressive when the smaller group friends are being harassed or bulled. ( You woulnd't like momma when she's angry )

Tip ) Stick with a Medium / Deep tone and a lighter voice when speaking calmly.