Seraph Ascent Chapter 3: Route C: Pages 1-6 (Pixiv Fanbox)

And to the Dark Sea Cave they go! Along the way a shocking discovery... of the Purple Kelp! The Antiquary all the way back at the beginning had asked for them to find some. How fortuitous!

However, unlucky for them, it happens to be in the territory of an especially powerful monster..! Looks like they'll have to fight it out if they want to pass!