If you're looking for anime similar to I'll Protect the 2nd ML's Love, you might like these titles.
Alicia is a girl that hates "goody-two-shoes" heroines. Her wishes come true when she is reincarnated into a villainess in her favorite otome games. She strives to be the world's most evil villainess in history. However, the more she tries to be a villainess, the more the prince appears to like her...
Konoha Satou has a dark history, written throughout middle school-a fantasy adventure of love and magic about the Count's daughter Konoha Magnolia and the knights who love her! But when it looks like that dark history is going to be uncovered by her mother, Konoha panics and dies in a traffic accident! Opening her eyes, she finds that she's been reincarnated into the world of her own dark history as Iana Magnolia, the worst villainess of her own creation!
Pride Royal Ivy is only eight years old when she realizes that she’s been reincarnated, destined to become the future wicked queen and final boss of an otome game. She’s got it all in this new life: razor-sharp wit, boss-tier powers, and influence over the kingdom as crown princess. Determined to sow despair and destruction across the land, she… Wait, what kind of a rotten future is that?! Princess Pride decides to drop the maniacal villainess plan and protect the male love interests instead, cheating her way to saving everyone she can! Will this final boss end up earning the adoration of her kingdom?
Married and with a child on the way, Miaka and Taka couldn't be better. That is, until an obsessive young girl enters the universe of the four gods, with her heart set on using Suzaku's power to not only steal Taka, but Miaka's baby as well! Taka must now return to the world of his past to not only save his family, but the rest of the kingdom as well!
After being reborn as the villainess of an otome game, Katarina has done everything in her power to avoid the Bad Ends awaiting her at the end of the school year. Now, she has successfully finished the events of the game without being exiled or killed! Not only that, but she has made a close group of friends in the process. Now that the greatest crisis has passed, Katarina is excited to attend her first school festival in this world, and to sample all the delicious foods there... Just as she feels like she can finally relax, she is kidnapped! Is this the setup of a new romance event, and potentially another Catastrophic Bad End?! Find out if Katarina can survive in the next installment of this disaster-avoidance rom-com!
The world turns upside down when a corporate drone wakes up as Rae Taylor, the heroine in her favorite otome game, Revolution. Rae is elated at the opportunity to court Claire François, the game’s villainess and the object of her affection. Armed with her knowledge of the game and events to come, Rae sets out to make Claire fall for her. But how will the villainess take Rae’s romantic advances?
What’s a guy to do when his life suddenly changes while innocently enjoying a nice, cold drink after work? And I mean really changes. This middle-aged commoner now finds himself in the body of Liam Hamilton, the young son of a noble house teetering on the brink of collapse. Between his fervidly desperate father and his utterly apathetic brothers, the only bright side to his new situation is that Liam can finally try learning magic like he’s always wanted. Little does he know his hobby of choice may be about to turn his life upside-down yet again! Will Liam be able to master the craft of magic? And will it be enough to save him from the shadow looming over his family...?
Tamahome is gone -- but not forgotten. He has been reincarnated as a man named Taka in Miaka's homeworld, and as fate would have it, they have met each other yet again. The memories of Tamahome's past and love for Miaka remain intact, but are trapped within memory globes in the Universe of the Four Gods. It's up to Miaka, Taka, and the rest of the old gang to find Taka's memories and help their homeland once more!
After the events of Fushigi Yuugi, Miaka and Tamahome are happily living on Earth. But upon visiting the Byakko and Genbu priestesses' graves, Tamahome magically vanishes without a trace, leaving a distraught Miaka behind. Someone from their past, it seems, is convinced that Tamahome is not who he appears to be, and is willing to do anything to prove it. Against all odds, can the two be reunited, or are they doomed to stay apart forever?