For May's catchup, we've got an isekai (or adjacent) extravaganza! Strap yourselves in for a ride!
First off, a pair of standard isekai fare: finding yourself in a fantasy world and making the best of it! Chillin’ in Another World with Level 2 Super Cheat Powers stars a summoned hero who gets banished because he's too weak, only to awaken to his tremendous powers as soon as he levels up! Now he just wants to live a relaxed life in this new world, but will the kingdom or the demons let him do that? Then in the manga adaptation of Full Clearing Another World under a Goddess with Zero Believers, Makoto's entire class gets summoned to a fantasy world, but he alone is too weak to get sponsored by one of the human kingdoms. A mysterious goddess offers to help him out... but he finds out that he's her first, and only, believer! Can he achieve a full clear under these conditions, or will it soon be game over?
When it comes to medieval fantasy worlds, apparently you want to be anything but a duke's daughter... And our next pair features that misfortunate position! In Deathbound Duke’s Daughter, Erika Aurelia realizes that she's been reincarnated into a game's villainess who's fated to die in all seven of the game's routes! Can she use her wits, and her brother's ludicrously expensive magic tools, to survive? Then, Claire loses her engagement, her reputation, and even her reality as she realizes she's just a character in a video game, but that won't stop her from finding her own happy ending! Find out in Formerly, the Fallen Daughter of the Duke!
Finally, if you think of "world" as "planet," then Perry Rhodan NEO fits the bill too! As Earth slowly devolves due to various crises, the only hope for humanity is in science and the exploration of space. When a key moon base goes dark, it's up to Perry Rhodan to lead a rescue effort. However, his mission will have much deeper implications for the planet than anyone could imagine... Check out one of the most successful and longest-running science fiction series in the world!
That's 30 volumes of other worlds for members to dive into! And you don't even need to get hit by a truck this time!