How many stages does Fold 2 need to have 300 loads?

In the game "Collapse Academy 2", after reaching level 353, the character's weight-bearing attribute will increase to 300, he can carry more equipment and articles, be more flexible in battle and be able to cope with more tactical needs. The promotion of character level is accompanied by the increase of attributes and the unlocking of skills, which makes the character more powerful in the battle.