I cried so hard when the little robot jumped off... Like, Mr. Rocha? I believe that's his name in english, his story is sad bruuhh, he sacrifice himself because he believes he had no one to protect? (Not being a parent) and saw that his friends is hesitating because of their children, and so he decided to create a robot to be the one to protect those children. It's sad because he's so lonely, so self sacrificing when no one is listening to him... He made it his mission that his friends won't be worried. And even have his existence erased?? He got cremated and his ash gotten rid off is I remembered correctly, poor little robot even asked his/her dad if he's happy ಥ_ಥ
The mc really made it seems like nothing although his life is a lot darker than he perceived, from his POV, it's like all fun and funny because he's used to the abuse. But, imagine regression again and again, living that exhausting life of unrequited love (or so it seems, but I think it's just admiration), never been the choice, abused again and again, insulted and bashed by people due to his legitimate status. Not to mention, he had to watch Daphne unalived her self over and over agajn despite being the only thing that matters. It might seems like nothing to the reader's perspective, but it it's hell if we were to experience it. Just changing the genre is enough to make this equally depressing.