Death March kara Hajimaru Isekai Kyusoukyoku (WN) - Book 1 - 1-8. The Demon, the Knight and the Magician

She is the wife completely ignored by him, yet also the woman he most cherishes. Ultimately, she forces her husband to divorce her by taking on the identity of a lover!She steals vital information and, carrying this man's premium seed, successfully makes her getaway!Six years later, father and son have their first online confrontation. The little bean successfully infiltrates the man's system and sighs at her, “Mom, this person is so dumb. Is he really my dad?”Mu Yiliang pats her son's head and says reassuringly, “He was so terribly fooled by me back then, which shows his IQ is very low. Luckily, you inherited mine!”Unbeknownst to them, the man on the other end of the computer has already listened to the conversation between mother and son. He sneers coldly, “Very low IQ? Mu Yiliang, let's see where you're going to run this time!”

The world was destroyed by meteorites and everyone on Earth transmigrated to a wasteland.The wasteland would encounter an unpredictable catastrophe every seven days. Some of the catastrophes included the great flood, ice age, invasion of demonic beasts and plague of plants.In order to survive, mankind had to build more advanced shelters.Lin Yue awakened the 100 Percent Drop Rate System, allowing him to live a very different life from the others.Other people lamented, “The drop rate is too low, isn’t it? I have killed 50 mutants, yet I still have not gotten any drops!”Lin Yue lamented, “I have way too many drops and my item list is now full. Could it be that I have to upgrade my shelter and build a warehouse for all the drops? Tsk. That’s so troublesome.”

An ordinary (?) grandfather, Choi Chuntaek. In an effort to protect his granddaughter, he started the virtual reality game 'Arkstar.'

Then... he accidentally obtained a legendary class?