Should you find yourself feeling overburdened by the weight of your brain cells this is the game for you.
Anyone who has been exposed to typical shounen isekai is aware of how ... generic the plot can be. Isekai Paradise scrapes the very bottom of the barrel here. For instance the very first girl our MC stumbles upon is in a life or death situation having been driven to a cliff's edge by five "demonized goblins". Of course MC saves her via super kool isekai magic! First girl get!! The day after MC and First Girl encounter the guild master fighting against a teleporting horde of "demonized orcs", which First Girl is now totally able to deal with a third of said horde now...because MC bought her a kinda decent sword.
Then we get an evil organization headed by a corrupt noble. They illegally alter slave contracts to make rape possible in order to run a rape murder brothel. Now, stuff like this really bothers me. Not the content, but the cheap writing that is making a villain so cartoonish Disney would blush for the express purpose of elevating the MC.
Speaking of said villain, the player is given a choice to kill or spare him. Upon choosing kill the MC proceeds to fucking torture him. Apparently torturing defeated enemies is what righteous, or moral, heros do. When MC finally does go in to kill him he has a bitch fit and falls to the ground because human life is precious. That's okay though, because NPCs come in to arrest the guy and wipe MC's ass. Of course the guy dies in custody because the villain needs to die, but MC is never permitted to be the cause of said death. It's a level of hypocrisy I am unable to tolerate.
One more example is when MC finds the remains of a long dead man, with a letter nearby explaining where he's from and who his wife is. Shortly afterwards MC encounters his wife and upon learning her name he's like "Oh, btw, here's your husband" *drops skeleton on floor*. This could've been hilarious, had they gone for a comedic angle of MC's complete lack of social awareness. But it's not. It's played off as totally heroic.
The scenes are flat out boring. All the girls grunt, moan, slur some words, moan, grunt, ahegao, moan, creampie, change position, rinse and repeat.
I was fully aware of the faults the isekai genre is plagued with going into this. However, I had foolishly assumed that as this is intended for an adult audience that the writing would aim to avoid these in order to entertain a mature audience. I was wrong. So wrong.