Ruv is also known as Ruvyzvat is one of the characters from Friday Night Funkin that appears in the Mid-Fight Masses Mod. You can fight him in a battle in the church of Sarvente, his childhood friend, whom he protects no matter what happens to them.
In this mod, the player has the opportunity to fight with three new opponents and hear three new songs, one of which is “Zavodila”, the song of this character, which makes even the church shake because of his powerful voice. Each time Ruv presses a note, the screen starts to shake and frighten Girlfriend. Even his microphone wasn’t on due to the fact that his voice can destroy the church.