Similarities:
- both are comedy series - you can count on them to make you laugh
- In both series, there is the 'enemies to lovers' trope
- In both series, there is a friendly rivalry as the main leads are competitive
- both series have a simple, straight-forward plot enhanced by the actors' spectacular acting

Differences:
- Bad buddy is fast-paced, while Rak Diao is quite slow-burn
- Bad buddy: University Setting, Rak Diao: Office Setting (indicator for the characters' age range in the series)

Based on a book written by the same author (Priest) as word of honour. Although word of honour is set in fictional ancient china and guardian is set in fictional dystopian china, the chemistry and dynamic between the actors/characters are similar.

Untamed is based on a book written by the same author as eternal faith (heaven official's blessings).