"Tighnari is the stern Chief Officer of the Forest Rangers and Collei's mentor. Tighnari is highly knowledgeable about various species of both plants and animals, particularly flowers and mushrooms. He spends a great deal of time in Sumeru's rainforests, ensuring that the ecosystem is balanced and offers advice to those willing to listen and sternly lectures those who don't. He serves as a mentor to Collei, who in turn sees him as a Master of some sorts and holds him with high regard."