He had planned to occupy the high ground provided by the slopes of Komatsu-yama and prevent the enemy from freely entering the flat plains of Osaka that exist once past the mountain.

On 5 June, Gotō Mototsugu and his forces were at Dōmyōji, a low-lying section of land north of Komatsu-yama on the opposite side of the Ishikawa river which is a tributary of the Yamato-gawa.

As they were doing so, scouts reported that the Eastern Army had exited the pass through the range and were moving up the southern slopes of Komatsu-yama.

Sanada Yukimura in command of the Osaka Army under Susukida Kanesuke began combat with Date Masamune in the area of Emperor Ōjin's Tomb and Konda Hachiman Shrine around 12:00 PM.

By 5:00 PM Sanada Yukimura made the decision to begin a retreat towards Osaka Castle having already lost two powerful commanders.

The pass through the range, the rivers, and tombs remain, giving any interested party the chance to visit and visualize this battle.