ENVY's Manga List

Sera and Rion were close, like a sister and a brother, when they were young.

A certain incident drove them apart, but they find themselves face-to-face after Sera transfers to a new department. Rion has grown into a towering giant and turned into a playboy... and a respectable paladin.
Sera feels an emotional distance from Rion because he has grown into a man who is completely different from the boy she once knew.
The two end up being assigned together on a mission to investigate a dungeon.

Working together on the assignment, they slowly begin to find their way back to how they once were, a long time ago.
However, the suspicious dungeon keeps throwing one trap after another at them.
A slime that melts your clothes and toys with your body... A secret room that won't let you out unless you do certain things...

Rion can no longer bottle up his lifelong feelings for Sera after seeing her be played with...

"I'll make you keep your mouth shut." A moan escaping from her lips, her mouth is forced shut by a kiss that seems to almost melt it as his warm fingers churn up her sensitive parts...