Unlucky Nuribou

Nuribous aren't all that common. Rarity of a puzzle type trips up difficulty rating. What the constructor considers a trite pattern is more often a journey of discovery for the solver. My first instinct was to rate this as barely a medium. On reflection, hard will best set the expectations of a novice solver. No, not rules post-level hard, but still...
Nuribou 6 "Unlucky"