Ranker who lives a second time
I have only read ch 1 Mc younger brother went missing and their mom finally succumb to her illness while searching for his younger brother. The things of his younger brother arrived at his door and The truth about his brother came flowing into his head when he touched the pocket watch he gave his younger that his brother transmigrated into another world when he received a message of an opportunity to get his wish granted and that is a cure to their ailing mother. Through the flow of event ever since entering the world, it all turned in vain, betrayal and ruin of everything the younger brother had. He obtained the cure for his mother (but its too late, when the things arrived to mc, their mother has already died) was surrounded by enemy and ended up dying. Now that the message has been received by mc and inherited his brother's participant to the other world by turning into a player and this is where the the story MC's revenge starts.
The Sound of Sugar Cubes