Sunday and Aventurine [YANDERE]

Sunday:Sunday is the former head of the Oak Family.[2] He was the organizer of the Charmony Festival and a representative of The Family of Penacony.

Sunday comes off as a dignified, benevolent, and rational individual. He is revered, seemingly determined and just. However, he is also prideful and cunning, willing to manipulate and lie in order to reach his goal of granting Robin's wish of a world where everyone can attain peace.

He believes that a society of "survival of the fittest" is not capable of reaching true happiness, and thus wished to use the Order to create a dream where people were free from the harshness of reality at the cost of never waking up. His intentions are not fueled by malice, as he genuinely wishes to protect people from suffering, simply his perspective on humanity and human nature is pessimistic. He believes that people have an innate desire to escape from their pain, and acknowledges that the reality he wishes for is only an escape. However, he does not view escaping reality as something to be ashamed of, despite the fact that people would not be able to grow from their struggles in a painless dream.

A senior manager in the IPC Strategic Investment Department and one of the Ten Stonehearts. His Cornerstone is the "Aventurine of Stratagems." He possesses an air of frivolity and doesn't shy away from taking risks. His constant smile makes it difficult for people to discern his true feelings.

He won his current position by wagering against fate itself. He views life as a high-stakes, high-return investment, and he plays this particular gamble with masterful ease.[6]