interesting start, it becomes a disappointment later
my native language is not English so there may be some broken English
I hope you don't waste much time like me reading 70 chapters of it
MC was a shy and fat ugly boy with a poor family who likes one of the most beautiful girls in school (somewhat cliche)
, he receives the group chat app and installs it, sends the anime and manga about the future of the other members (Chu yuechan de atg, aqua de konosuba, and Rias do DXD) of the group as if it were normal, they have no shock reality or doubt its existence, the MC doesn't even care to think of a credible excuse like "the world he is in can see the past, present, and future of other worlds" or something, no, he simply sends the information to them and is surprised when they don't have a reality chock, this is very strange.
he goes to kimetsu at yaiba on a mission with chu yuechan learns breathing and cultivation techniques with yuechan, becomes her boyfriend, muzan is actually a miza in this world thanks to a gender bender that the author gave him, miza is actually the wronged one of this world and is invited to the group chat afterward, which I expected, "girls chat group" is obviously only going to have girls for MC.
he becomes beautiful thanks to the cultivation and when he fuses with the physicist of Gilgamesh as a reward for completing the mission; his personality changes extremely fast and from a shy boy, he becomes someone ready to kill, he cultivates super fast bcz he is a genius with 54 open veins along with super resources that yuechan gave him and become OP, goes to tales of demons and gods and acts proudly, arrogant and carefree. kills enemies and monsters without any emotional shock or something in his first blood, he becomes a professor at the orchid institute (Nie Li school), but he is not at all suitable to be one, he teaches kimetsu breathing technique in yaiba instead of cultivation, the difference between the atg and tdg cultivation system is barely explained, the MC thinks that soul strength is equal to physical strength, he also favors pretty girls over other students extremely clearly, he is not even ashamed to admit that he favors girls beautiful than the rest, instead of being impartial as a teacher should be, MC buys heavens feels from the chat store, achieving immortality as well as selling nie li's temporal book pages to the chat without worrying about studying them and their concept of time they have.
Women easily fall in love with the MC (including those from the chat), sometimes the author writes "bla bla" literally instead of putting a sentence that represents a long conversation, and places several notes in the middle of the chapter.
the excuse to increase the harem until it reaches infinity is that chu yuechan, his girlfriend from the world of cultivation, even though she is of a higher level of cultivation, cannot satisfy him sexually, besides accepting dozens or hundreds of women in the MC harem ( it hasn’t reached so much yet it will certainly arrive) because its normal in atg world for men and so on. another important note is that the author admits to not even having read atg.
if you want a decent story with character development, slow and gradual romance, realistic harem (nobody just accepts a harem out of nowhere, least of all because that person cannot satisfy another sexually, would you share your partner with several other people easily? no, if you answer yes to that question you have strange ******** fetishes), characters similar to your originals, or realism in general, then no, this story is not for you
but if you want an arrogant super op MC with dozens of women who fall in love easily with him as he travels between the worlds collecting them like a master pokewoman trying to complete the Pokedex, then this is for you and I would even recommend other almost identical fanfics with the same "qualities" that I had the sadness of reading dozens to hundreds of chapters as
* "time emperor (champion)" the author is obsessed with the word "champion" in addition to being Spanish and the MC being a retarded butt hunter
* "Sis-Con with Dimensional Chat Group" Hypocritical and perverted MC, collects pokewomans on the left and right and when he promises to be faithful to the first girl he cheats on her in the next chapter
* "overluck MC" evil MC edgelord that kills innocents left and right while collecting asses to **** later and brainwashing them (if these girls have a brain in the first place)
they look like a carbon copy of each other with different names made for those with their hands on their pants, in my view, they tried to do what Cultivation Chat Group and Annihilation Maker managed to do and failed miserably.