Erin and Eric are twins who works at the Monster Ranch.
Erin is known for having an insane libido, which causes her brother Eric a lot of grief.
After meeting them, you can start capturing monsters for quests in the Dungeon. At the moment, you can catch three.
For the first quest, you need to capture a Heart Slime. They spawn on floor 4.
For the second quest, you need to capture a Rubber Naga and a Slime Girl. Rubber Naga spawns on floors 6-8 and Slime Girl spawns on floor 9.
Trivia
- Interestingly enough, Erin starts at 1 heart Affection, while Eric starts at angry waves towards the Protagonist, regardless of who you play as.
- Despite being added at the same time, Erin got updated splash art before Eric did..
- It's possible to enslave Erin, which Eric seems to not care about if you do. Or is simply unaware of it.