How tall is the tunnel to have room for sails? Or are you talking like airbrakes that pop out?
Also, I wonder if they're gonna add bathrooms on that thing cause a trip that's like 18 hours long is impossible for the bladder.
This manga kinda reminds me of "Citadel" just with the detailed gore in this. Citadel was a fun Japanese fps, but the gore would eventually get to me after a while. This manga feels less like a guro fetish fest though by a tiny margin.
That dudes room is crazy looking at it. He has 6 monitors, boob mousepad, and just a straight degenerate poster set-up. Just wild stuff.
Then ending the chapter with the manager chick's husband bound in the bed was just icing on the cake. This manga rocks.