When I train a Player who has already been trained, it starts over from the beginning.

Each time you perform "Training" on a Player you obtained, that Player is registered separately.

Even for the same Player, their abilities and Skills will differ depending on how the Training went.

Growth in "Training" varies depending on factors such as the "Player's Enhance Lv.," "Hands," "Support Cards," "Support Items," and "C Skill (Training Combination)."

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