A Rival's Kiss (слэш)

From Harry's very first encounter with the Dark Lord, Voldemort has always insisted on using proper etiquette, not accounting for the possibility of escalation.
Chinese translationg here: https://archiveofourown.org/works/25370992/chapters/61518859 Much thanks to Akira21818 for translating :)
Russian translation here: https://ficbook.net/readfic/10597371 Much thanks to Tasana for this translation!!