Shonan's wide service meets a Tosu defence that has recently struggled with crosses and the next contact after corners. Tosu have their own route through midfield passing and attackers receiving behind the first pressure. The important feature is how each attack meets a specific defensive task on the other side.
Takeda and Fukazawa give Shonan the central link toward Suzuki, Kozuki and the other wide options. Nishino and Yamada then attack the delivery, with later arrivals contesting the clearance. Tosu conceded headed goals from crosses at Niigata and failed twice to clear corner aftermaths at Iwata, making Shonan's preferred method relevant to this opponent.
In the other direction, Nishizawa's distribution and Yoshida's advance help connect Sakamoto and Shiohama. Tosu reached dangerous positions against Iwata, while Shonan's recent opponents have continued to get shots through their defensive structure.
Oda and Silva missed Shonan's last squad after official injury announcements; Takeda and Fukazawa were already carrying the midfield work. Tosu's Matsumoto also missed the last squad after his foot injury, with Nishizawa and the existing attacking connections still involved. This picture uses those recent roles rather than assuming any return.
I expect the first pressing exchanges to give way to more wide service, restarts and changes of receiver after the interval. The interaction gives each team a way to answer an opening goal. That's why I'm looking for goals in Shonan Bellmare against Sagan Tosu.