The Eldest Minamoto pushed off the man holding him down and charged at Kiyomori with his eyes flashing white.
Kiyomori didn't even blink an eye as he effortlessly materialized his sword from thin air and sent it forward at a frightening speed. The sword stabbed into the Eldest son's stomach with such a force that it went straight through his back.
His eyes flickered back to normal as he let out a weak groan and fell to his knees. He coughed out a mouthful of blood before collapsing.
Kiyomori bowed, "May you die with honor."
Then he turned to the second son who was watching with an unreadable expression. The second son was only a young teenager, but he was aware of the position he was in.
Kiyomori spoke in an authoritative voice, "Do you have anything to say?"
He lowered his head, "No."
Kiyomori nodded, "Good."
After ensuring that the other son wouldn't do anything stupid, he left to go find out what Ryu was up to.
OK I must point out:
1. Our lovely Elder brother would NEVER kill a child. He's just worried about the consequences Ryu would face by saving an enemy.
2. Ryu may threaten his lovely Elder brother, but it's more of an empty threat.