天条 美羽

A mysterious girl that suddenly appeared before Yukiha after he confessed and got rejected by his childhood friend, Yukitsuki. She is the self-proclaimed daughter of Yukiha. 

According to her, she came from the future to give Yukiha a happy ending. She helps him out using various gadgets from the future all the time.

Though she is feigning on being cool, she can be pretty emotional sometimes. 

Miu bears some animosity towards Yukitsuki because of what happened in the future.