August von Earlshide/Relationships

Diseum von Earlshide
Gus and his father usually does some comical skits which purposely done to tease Shin. Gus, share the same habits like his father and sometimes speaks in sync with Dis.

May von Earlshide
August loves to tease his younger sister.

Shin Walford
Gus likes to tease specifically Shin and his little sister May. He also likes to manipulate Shin to act on his plan. Due to his different attitude towards Shin, it led Thor and Julius to feel pressured because they were both close to him since they were young but Gus never talked to them in a common fashion. Gus' fiance Elizabeth found it irritating too, so much she felt left out and have been jealous with Shin albeit thinking the two might be lovers. Gus' later eased her mind after he caused Shin to confess to Sicily.

Elizabeth von Coral
Gus is in love with his fiance, but this does not stop him from occasionally teasing her.

Thor von Fregel & Julius von Littenheim
Thor and Julius to feel pressured when they see how filial Shin and Gus because they were both close to him since they were young but Gus never talked to them in a common fashion.