Spend the night with Seth with no strings attached.
Kiss Seth with poison on your lips.
Have high trust stats with Seth and dodge all death endings.
Get Seth to kill you.
Have your first kiss with Venom.
Find out Venom's secret.
Kill the leader of the assassin's guild.
Provoke another female assassin.
Have high trust stats with Venom and dodge all death endings.
Obtain the dragon egg.