"SOTUS" is an educational system in which senior students impose "trials" on new students. The Head Hazer, Arthit, a third-year undergraduate student, imposed rigorous training on his juniors to educate them to be suitable for having the faculty's symbol, "gear ." However, a cheeky man who declared that he would "take away the gear from his seniors" , Kong pob, a first-year student, would bother him. Thai BL monument! School BL of obsessive dog junior x tsundere senior!