Yukari's first thought was along the lines of "do not attack again and let us continue our mission."
The chance to help was one she had difficulty passing up, as she assumed Kotori would too. But with the interdiction field up, and their own systems not fond of being pushed, she could not see how they could reliably stage an attack and expect to survive.
The problem, as Yukari saw it, was keeping the ship in good condition. They could not afford to rush headlong into battle as the Sakura had, as no repair facilities were available to them. Risking the vessel in a fight they might not win was unwise.
... Unless a pincer attack was attempted. They were, after all, two vessels. If the Hoshi flew in stealthed and fired distracting aether beams, perhaps the Miharu could fire torpedoes ...
No, Yukari thought. Even if the ship did not notice the torpedoes actively, their scalar field would destroy them. Beam weapons were equally slow. The interdiction field was making things difficult.
... Ah!
"We could use AS-5a's," Yukari said, slowly. "One burst of gravimetric propulsion can put us on a course with the vessels. We need only get within 5/8 of an AU to be in range. When the time is right, we blink from stealth, fire, and restealth. Another gravimetric burst in a random direction would put us safely away from them." She calculated in her head the times and speeds. "At 0.80 c, which we can attain with a hard burst, we will reclear their interdiction field in 5 minutes. It would take longer if we went deeper into their ranks. With the state the main ship is in, two AS-5a's should destroy it ... neh?"
She was unsure if she overstepped her bounds.