The Strongest Assassin Reincarnates in Another World

Wow! bro what a story. Mostly perfect grammar and I love the way you write, the build up to the story. It's beautifully paced, making for totally an immersive reading. There are however a few errors of note. In your synopsis you mentioned, " ...the universe was not done with him and made him awaken in another world. You could have said instead, "...brought him back in another world.
On to the chapter I you state that Aiden was perplexed by 'the lack of support from the police'. Regardless of how vicious or how much of a menace to society his victim was, the police will just consider anyone who kills this rotten apple as a criminal and not as a saviour. That's standard police rational, it's just black and white in their reasoning there are no grey areas. In that regard you might want to say instead, that Aiden was perplexed by the lack of impartiality by the police, as they had already convinced themselves that he was guilty of the crime without bothering to give him the benefit of the doubt. Otherwise... excellent writing bro. Keep up the very high standard.

it's amazing really. This is like a totally new type of reincarnation novel, not the ones that are common and so on. Grammer is spot on, I could almost enjoy those words.
it was very well written and looking forward for more!
good luck and keep writing 😊

Hello author! I'm interested in starting to read the novel, but first I would like you to ask me a few questions, please, my questions are as follows: who are the members of the MC's harem (if you can please say their names) and if there will be ntr (I hope not)... please answer me

Everything else is quite good, but I just hate Aiden's attitude, I understand why he's like that, but it's a bit much a bit  unbearable to read

So far I have reached chapter 150 and this far my only complaint - which still is annoying is for the worlds strongest assassin - he is very indecisive … surely that should spell death as an assassin especially when it comes to romance - I hope this gets sorted as it’s only part of the story that is really lacking … why can’t we have an mc that is a boss

The novel is very good, what I liked most was the writer's ingenuity in the description, so that you find yourself immersed in reading without realizing it،

Really good story. Felt like it was sped up towards the end and could have ended a little better, but overall great characters and good storytelling.

The story is interesting and if it weren’t for the simplistic female characters I’d keep reading. Why are they behaving more like a litter of jealous puppies than individual humans? It’s pretty common in this platform, but is it necessary? I do really like the story - very interesting considering the genre!

Thanks for the chapter update. An isekai character to another world, killed by his own professor, seems good. Actually i just read you first chapter and due to several books that I have read, isekai is already a part of it. Im looking forward into your world building. Good luck..