Kuro No Shoukanshi (dub) Episode 4 -

Standard isekai "slow burn" hindered by the slave-collar subplot.

: Much of the episode focuses on the relationship between Kelvin and Efil. A month has passed since their first adventure, and Efil is now treated as a proper adventurer rather than just a slave assistant. The sweets shop "date" scene provides lighthearted comedy, especially when Kelvin’s awkward phrasing leads to public misunderstandings. Kuro no Shoukanshi (Dub) Episode 4

For a deeper look at the combat and character dynamics in this episode, check out this breakdown of Kelvin's confrontation with royalty: Standard isekai "slow burn" hindered by the slave-collar