One that struck me the most is how one should deal with life when you can live for an eternity, as MC and ML I guess kind of shared genes with each other or the MC containing a "key gene" for the ML to evolve somehow also lengthened his lifespan for an indefinite amount of time.

The emotions hit me really hard when reading the extras here MC & ML went back to earth and most of his family and friends are gone that scene when he was browsing their family album tore my chest and the part where he was watching the documentary about his life and at the very end after the credits, it showed a photo of their team of scientists in the otherworld + the video made by his mentor and friend, is just T_T

The game system's load and save file is actually originally the MC's time ability. The future MC lived a long, long life and made the system so that the MC will have a direction to saving the world, meaning sacrificing himself for humanity.

The ML's love for the MC really made me cry so many times but the extras made me feel pain. Part of the extras is the future MC's experience with nothing but himself to rely on. He had no family in the game world, no connections, no system to guide him, no nothing. He started from the lowest starting point with only desperation to survive until he became mad. His time rewind ability only activates in a near-death situation. To save the world, he experienced hundreds of deaths. At the time, 428 was not hope but a monster he didn't know.

And then, many things happened. I don't want to elaborate but it really hurts. Just that the future MC especially reminds me of SSS-Class su*cide Hunter.

I believe that the reason why the MC is so OP is because of the system created by the future MC. There were levels in knowledge and I think this knowledge is from the future MC.

The reason the king of fungus is so desperate to eat MC is because the MC's body contains this special key to evolution.

ML killed MC 34 times (?) , I really liked that because it didn't feel like their relationship just magically worked in one go. It took trial and error.

for a while I even blamed the MC a lot for acting the way he did when he discovered that this world could be real and not just a game, but being honest, would you blame him? ? Many in his shoes would think of clinging to the golden thighs but his response was to ease the pain that sooner or later would cause their separation : (

he is the red flag and at the same time the greenest I have ever seen in my life, he is a monster through and through, his behavior and vision of things are that way and even when he feels emotions he doesn't know how to distinguish them or how to react to them, as the story continue he goes from being a monster that kills and devours even flesh and bones dozens of times of the MC to a monster that even in the worst possible mental state he is scared of any minuscule harm he can do to the love of his life

Leon, a character whom I initially thought was a typical flat villain who disliked MC, has some character development and does not behave like a s*upid stock character who does not see beyond his hate of the main character.