Nenjuu Mugichatarou

There used to be the strongest sword saint. He is called Raguna. He challenges the mysterious dungeon "Tower of Heaven" alone, and reaches the seventh layer, which has not been reached by humankind but reaches the limit of growth-level 99. But he didn't give up. Reincarnate while maintaining level 99 status and start over from level 1! This time, the magic will be much stronger than before. And aim for complete capture of the tower with reliable friends!

Ragna, "Master of Sword", used to be the strongest swordsman. He ventured alone into the mysterious Heavenfell Tower and reached where no man had stepped before, the seventh floor... only to find the limit of his growth. However, his story is far from over. He gets reincarnated and returns to level 1...while keeping all of his level 99 stats?! Source: MANGA UP! Global

Laura, who had learned special education to become a swordsman from her A-Rank adventurer father, enters the Royal Capital’s Adventurer’s School at 9-years old. Laura was filled with expectation in her heart, and at the day of the entrance ceremony, Laura’s sword aptitude value sprang out at 107. Between normal students with only 50-60 aptitude value, Laura was definitely a sword genius. But, the magic aptitude value that was measured after that was 9999! Laura was stunned, while she didn’t know what was happening she was transferred to the Magic Department. Contrary to Laura’s will, she exerts her super-genius, and instantly became stronger than the instructors.