violating the space-time continuum to get laid

Modern-day office drone stumbles on a saintess summoning mid-summon, tries to help her and gets dragged along to Fantasyland. Unable to abondon his workaholic ways, he completely revamps 80% of the local government while dealing with hostility, distrust, and a very attractive knight who has decent in-universe justification to make out with MC at every available opportunity.

MC accidentally hecks up his sister's game, gets caught trying to fix it, and gets dropkicked so hard it yeets him into the game world as a minor antagonist. All he wants is to be left alone and hopefully go home once the game ends, so why are all the male leads following him around like he's the heroine? And why does it look like the heroine only has eyes for his (female) cousin?

Guy with a lot of issues and a seriously troubled past is killed and wakes up as an NPC in a video game just in time to meet the big bad, on whom he has an unhealthily obsessive crush. Now he has 2 goals: prevent Eve from being killed by the hero, and get plowed by Eve on as many flat or semi-flat (or not at all flat) surfaces as humanly possible.

There is a lot - and I do mean A LOT - of dirty graphic sex in this one. Consider yourselves warned.

Truck-kun bodyslams MC and his attitude into the world of a novel, where he wakes up as the shrinking violet fiance of one of the villains. The gods want him to save this world, so obviously step 1 is making sure his contract husband-to-be doesn't turn to the dark side!

This would be a lot easier if his fiance was a little less paranoid. Or if the gods would give him literally any help at all. Also if he and his fiance would stop obliviously falling in love with each other.

MC is a commoner and an omega who is scapegoated by the PTB and executed. Wakes up several years in the past, before everything kicked off, and resolves to prevent the dark future he lived through. Which means befriending his comrades, establishing connections with former foes, and winning over his odd and inscutable (but undeniably handsome) commanding officer.

The slowest of slow burns. Endurance training at its finest. If you survive this wait, you can survive anything.