Kazuto Tonooka/Plot

Introduction Arc
Yuba Squad presumably takes part in the extermination of all rads in Mikado City.

Large-Scale Invasion Arc
Yuba Squad is seemingly not deployed during the Second Large-Scale Invasion, and could, therefore, be among the B-rank Squads with missing members which Masafumi Shinoda prevents from fighting against Aftokrator's forces out of fear of capture.

Round 1
on February 1st, Yuba Squad starts off the season at 4th but it is unknown which upper B-rank Squads they fought against or which division they fought in.

Round 2
During the four-way rank war of the day division on February 5, Yuba Squad faces off against Azuma Squad, Katori Squad and Ōji Squad. The three Squads manage to force Haruaki Azuma to bail out by focusing their fire on him.

Round 3
On Saturday February 8, Yuba Squad fights in the night division of rank wars but what squads they fought or what their rank was afterwards wasn't shown or said.

Round 4
Since Tamakoma Second fights Ninomiya Squad, Kageura Squad and Azuma Squad in the night division of rank wars on February 15, and since Katori Squad and all other possible opponents were in the middle tier of B-rank or lower, Yuba Squad must have fought in the day division against Ikoma Squad and Ōji Squad. After the scores from both divisions are tallied, Yuba Squad is shown to being fourth place with 22 points.

Galopoula's Blitz
Azuma Squad, Kageura Squad, and Yuba Squad fight in the night division of rank wars on February 19.

Round Five (Night)
After the results of the night division are tallied, Yuba Squad is overtaken by Tamakoma Second and pushed to eighth place.

Round 6
Yuba Squad fights in the middle group on February 22nd but it is unknown which Squads they fought or what division they were in.

Round 7
Yuba Squad fights against Arafune Squad and Nasu Squad in the night division on march 1st, which gives them enough points to go back up to 7th.

Pre Round 8 meet up
She appears with her captain Yuba when meeting Yūma. After mistaking her gender, Yūma fights her to in multiple solo matches as an apology, but he held back so Obishima easily wins them all. However, after Yūma stops holding back thanks to Yuba's lecture, he unleashes a new move he made which pierces Obishima's Trion Gland. Yuba claims Yūma overpaid thus fights him in a 1v1 and destroys him with a quickdraw.

Post Round 8
Nasu gets enough points to reach 7th place which bumps Yuba Squad down to 8th.

Obishima along with her current teammates, Kazuaki Ōji and Kazuki Kurauchi met up with Kanda for Dinner to bid him farewell.