Kevin Route Final Boss Solo (Nightmare, No Items, No Healing Arts) - Kai no Kiseki (MAJOR SPOILERS)

Inspired by this video:    • 界の軌跡　リオン＆セリスvsケビン　ソロ　難易度ナイトメア　回復アイテム回復アーツ禁止　他   I basically copied their setup. The fight is surprisingly easy this way. I'll write an explanation here at some point lol