Runo spends a lot of his time just doing whatever he feels like. He can often be found in alternate worlds masquerading as various people just for kicks. He's been doing this for as long as he can remember, it seems as though it's something that just came innate with the governance over love.
Over the course of Cyrus' escapades on Earth, Runo is spending his time in a medieval world living as the third son of a Duke. Runo, using this disguise, finds himself as a sort of mastermind in the society he put himself in. He finds joy in scandals and using his governance over love to make unlikely couples appear. Runo finds this world incredibly entertaining and rarely leaves. When he does leave, he visits his sister and pays his respects to the young sun goddess. Though he does pay respect to the sun goddess, he treats her as a younger sister of sorts. This means he has a tendancy to tease her and wants to shake her world up a bit.