The Last Witch, I Am Invincible, You Can Do Whatever You Want

[Protagonist has no CP + adventure growth] Thousands of years ago, she was the last in the Witch Council. After waking up, she is the only person in the world who can use magic. Su Wan, the worst witch in the Star Tower, is severely dependent on mobile phones, is afraid of trouble, and loves to eat meat. He fell asleep at the end of the Great Magic Era and woke up in a modern city thousands of years later. The concentration of magic power dropped to the bottom, myths turned into legends, and she was the only one left in the world who could cast spells - so the last one automatically became invincible. But invincibility cannot solve all problems. Lamb kebabs at barbecue stalls cost money, renting a house requires an ID card, and finding a job requires academic qualifications. She can summon ancient beasts and release obliteration-level super magic, but she doesn't know how to calculate one hundred minus thirty-seven, doesn't know what a "discount" is, and doesn't have that plastic card called an "ID card." In this world made of paper, "existence" itself needs to be proven - and she has no proof. She sent herself to high school for five yuan to eat sweet and sour pork and free air conditioning. Learn addition, subtraction, multiplication and division while hiding your magic power while dealing with endless daily troubles. The days were supposed to go on quietly. Until the seal that existed thousands of years ago began to loosen, until she discovered that the disappearance of magic was never an accident, but the person she trusted the most personally closed the source. Under the shell of a relaxed and humorous daily comedy, there is a story about loss, choice and restraint. When the final choice comes, she must choose between "repairing the seal and losing magic forever" or "letting magic return and plunging the world into unknown threats."