if i had a dime for every story I've read about someone being isekaied into a novel or game as a side character and by accident makes the mc fall in love with them, i would have at least 4, which is weird
I would definitely recommend "Stuck in My Sister's Dating Sim". its one of my personal 10/10. the mc was transmigrated into his sister's otome game as one of the villain with a major inferiority complex. his goal was to survival the game and find a way to return to his world, but along the way he managed to sway all the love interests of the game, which only give him extra headache. all of the characters are very well written and the plot with its world-building is well structured. its like the yaoi version of "my next life as a villainess"
another ones are, the Chinese novel "Scum Villain Self Saving System" by mxtx and a manga with the title "Ateuma Chara no Kuse shite, Supadari Ouji ni Choai sareteimasu" on bato
I hope this helps
I'm waiting for the official translation, so please no spoilers. I have a theory about the black dungeon. when the message from Gaia system appeared and said that the conditions haven't met, its been stuck to my mind that the condition is for all the chosen ones to be present. the first time, only chaeyoon and kangjin were left, 2 out of the 5.







this story is so good... I don't even need the r-rated chapters (i will be reading them tho). I love the story and the progression of first's and Keith's relationship. it feels so natural and you can clearly see how their feelings change throughout the story. this one went hard.
the incest part tho... was not tasteful and I'm upset about it. maybe in the original novel, it was handled more delicately but it didn't come across as such in the manhwa
I actually never expect the incest tho, but I do agree that this story is still good even without the side stories (not complaining, jusg saying the story is already peak without side)