Frieren and Fern are in their shared bedroom in an apartment, Frieren reading a book on more magic, Fern is watering the plants

Frieren: “Sterk’s birthday is next week, by the way.”

Fern looks at Frieren with an unamused expression

Fern: “And you didn’t think on bringing that up?”

Frieren: “Not really. I’m busy.”

Fern: “Ugh, how am I gonna go buy him a present?”

Frieren: “I have something in that chest.”

Frieren points at a glamorous chest, so Fern walks over to it and opens it up. It holds a lot of different junk, but one caught Fern’s eyes, taking it out, it’s a small vial of clothe dissolving liquids

Fern: “You’re disgusting, Ms. Frieren.”

Frieren: “C’mon, boys like it when you are naked, and Sterk is no different. He’s just a boy.”

Fern walks over to Frieren and takes off the lid, then the Doom Slayer appears in the room, causing Fern and Frieren to look at the tall, green armour wearing demon killer

Frieren: “And who are you?”

Fern: “He looks quite strong, those biceps are bigger than my entire head.”