If you are looking for the "Frieren and Fern in the lewd dungeon link," The Contrast of Personalities
For Frieren and Fern, these stories often play on Fern’s protective nature and Frieren’s utter indifference to the "danger," leading to the "Ecchi" humor the genre is known for. Where to Find Fan Content (The "Links") frieren and fern in the lewd dungeon link
Cursed Artifacts: Items that alter the characters' personalities or physical sensations. If you are looking for the "Frieren and
Magical Traps: Mimics or vines that target clothing or restrict movement. frieren and fern in the lewd dungeon link