Chained Ogre (赤鬼, Red Demon) is a Mini-Boss in Sekiro: Shadows Die Twice. ... Mini-Bosses are special Enemies that are uniquely named, and have 2 or more health bars.
Do you have to kill the chained ogre?
If you can't beat the Ogre, you can actually run straight past him - just sprint away and hide on the other side and you'll eventually lose his aggro and you can continue onwards. We recommend you beat him for the practise and the Prayer Bead, though!
What boss is after chained ogre?
General Tenzen Yamauchi is an optional mini-boss in Sekiro who you'll find in the area immediately after the Chained Ogre. He's optional — you can run straight through this area and onto the Underbridge Valley, but defeating him will earn you a Prayer Bead.