Thanks for the chapter!
In regards to the other comments the LN mentions that while there aren't condoms in that world, there is various magic like one to prevent pregnancy.
His limit break sounds a lot like MC's one minute skill in Chivalry of a Failed Knight. If reading it right doing death defying exercise removed fear of death so able to use 100% of brain and remove the limiters on his body allowing him to think and act faster, more intelligently, perceive what's going on, and increasing his body's speed, power, and ability. Downside is if exceeds three minute mark his brain will start to burn out from running everything instead of just part at full power while his body will start tearing itself apart. Body's limiters are to limit action to prevent injury from overexertion. Seen Ghost in the Shell movie where the major is trying to pull hatch open on a tank but stress ripped her limbs off instead? Or a runner who runs with everything they got and passes out when stop running? Major's limbs ripped because no limiters to prevent effort from damaging her body and while runner expended a lot of effort his limiters only used enough to run fast but still retain enough energy to keep body breathing and heart beating after passing out.