Fullmetal Hugger - No Future - Low level

Trials of Mana boss fight against the first boss Fullmetal Hugger, at low level.
This is part of a walkthrough on Steam, named "The Rabite Slippers challenge", which is about beating the game in No Future difficulty with under leveled characters, and at times, even under class.
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In No Future difficulty level, almost all boss moves are lethal if not dodged, but only for the character currently controlled. The other ones will keep at least one health point. Also, in any difficulties, enemy moves can be dodged by using a class strike, a special attack consuming a kind of energy gauge.
To gain the less experience possible, you have to take damage at least once in the fight, usually meaning a collapse, avoid killing something with a class strike, and avoid finishing a fight in less than thirty seconds.