Stories of the Japanese 00908 [Early Nanboku-cho Period] The Battle of Sabae

After Kanegasaki Castle fell, the brothers Nitta Yoshisada and Wakiya Yoshisuke began gathering troops to somehow launch a counterattack. (Though it feels like it might be too late...)
Once the Nitta army had gathered 3,000 high-morale soldiers, Takauji in Kyoto learned of this and dispatched Shiba Takatsune with 6,000 cavalry.
The Shiba army could not easily approach Somayama Castle and continued to engage in skirmishes with the Nitta army at Oshio (Minamiechizen Town, Fukui Prefecture). The Shiba army then initially holed up in the Echizen provincial capital (Echizen City, Fukui Prefecture) with their 6,000 cavalry, but,
"If we all hole up in one place, we will likely run out of provisions."
They said, leaving 3,000 cavalry at the provincial capital and distributing the remaining 3,000 among 30 castles throughout the province. And so, battles began to break out here and there across Echizen Province.
By February of the 2nd year of Engen/4th year of Kemmu (1337), the snow had melted. The second month of the lunar calendar would be around April in modern terms. Wakiya Yoshisuke stated,
"The time has finally come when it is easier to fight. To gradually advance closer to the Echizen provincial capital, we need to build castles along the way. Is there any good location?"
He then set out for Sabae (Sabae City, Fukui Prefecture) with about 150 cavalry.
The Ashikaga army, having grasped this, left the Echizen provincial capital with 500 cavalry led by Hosokawa Dewa no Kami, rushed to Sabae, and surrounded them. Incidentally, while Hosokawa Dewa no Kami must have had a real name in addition to the title "Dewa no Kami," it is unknown, so I have no choice but to call him Dewa no Kami.
Since a commander of Yoshisuke's caliber had set out with only a small force, this was a great opportunity for the Ashikaga army. However, at this time, the Ashikaga army believed that the brothers Nitta Yoshisada and Wakiya Yoshisuke had died in battle, so they were likely fighting without realizing that the enemy commander was a major figure.
Surrounded on three sides, Wakiya Yoshisuke resigned himself to the fact that he could no longer escape, and with a desperate resolve, he fired arrows fiercely. The intensity of this onslaught caused Hosokawa Dewa no Kami to cross the shallows of the Asouzu River and flee to the opposite bank.
The soldiers of the Wakiya force tried to cross the river with this momentum to pursue the Hosokawa army, but Yoshisuke cautioned his men with a cautious attitude.
"A small force defeating a large enemy is only a fleeting moment. If a full-scale battle begins, the enemy will conversely gain momentum. Stop the pursuit and instead call for our allies."
He said, and ordered them to set fire to the surrounding houses. It is a terrible thing to set fire to civilian homes, but in this era, it was a common method to inform distant allies that a battle was taking place.
Seeing the fire and learning that a battle was taking place in Sabae, the Nitta side sent out troops one after another to help the Wakiya force. Wakiya Yoshisuke seems to be quite skilled at warfare.