Arthit Rojnapat

Arthit "Oon" Rojnapat is a protagonist of the story and is the boyfriend of Kongpob "Kong" Suthiluck. He is played by Perawat Sangpotirat. He is a 3rd year student in the Faculty of Engineering in the events of SOTUS The Series. He later worked in the Production Department in Ocean Electrics subsequently followed by the Procurement Department.

Appearance
Arthit is described by Kongpob repeatedly as cute. He is also a head shorter than Kongpob. He has black hair and eyes.

In the novel version of Sotus, Arthit has long hair, tied back in a ponytail, in the begining of the year, specifically to help with his fierce head hazer image. The screen adaptation does not follow this. But, both versions emphasize how Arthit looks even cuter once he gets his hair cut.

Personality
He is very hesitant in showing public display of affection. He is shown to be a more introverted character.

Story
SOTUS The Series

SOTUS S The Series

OurSkyy Ep 5

Kongpob "Kong" Suthiluck
Kongpob is his boyfriend.

 Other friends 

Arthit’s other friends include Knot, Prem, Bright and Tuta.