Yuki Yuna

Yuki Yuna is the central heroine of Yuki Yuna is a Hero and a member of the Sanshu Middle School Hero Club. She accepts the Hero System to protect Shikoku from Vertex attacks without initially knowing the cost of repeated power use.

Yuki Yuna's role and development in Yuki Yuna is a Hero

Yuna is cheerful, brave, self-sacrificing, and guided by a simple desire to help anyone in trouble. Her hero form grants immense close-range strength, barriers, and the Mankai transformation, which historically demanded physical sacrifices.

Yuki Yuna's defining relationships and loyalties

Mimori Togo is her closest friend, while Fu, Itsuki, and Karin share the burden of discovering the Divine Tree's system.