Yukari Obishima/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, her squad starts off the season at 4th but it is unknown which upper B-rank Squads she fought against or which division she 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 and was able to do good enough to still be in 4th place after Tamakoma second's match.

Round 3
On Saturday February 8, Yuba Squad must of fought in the upper group, night division of rank wars as Katori and Ōji Squad's matches were done by the time Tamakoma Second finished and Yuba Squad was ranked 7th 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 Invasion
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
On Saturday February 22, Yuba Squad presumably fights in the middle group.

Round 7
As Katori Squad, Suwa Squad, Kakizaki Squad, and Ebina Squad all fought in the day division, Yuba Squad must of fought 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
Through Kazuma Satomi, who talks enthusiastically about Yuba's combat prowess to Osamu Mikumo, Shun Midorikawa arranges for Yuba and Yūma Kuga to meet. Yuba has Yukari Obishima introduce herself to Yūma, whom she admires, and when he mistakes her for a boy, Yuba forces him to spar with her as an apology. When Yūma stops holding back and shows off a new technique, Yuba has a round against him and defeats him in an instant with his quick draw.

Round 8
Obishima fights with Yuba in the melee surrounding Hyuse. At one point, Hyuse uses escudo to hit her with a car. Later she encounters Kuga and Kai Minamisawa. When Minamisawa lets his guard down, thinking he and Obishima have a common interest against Kuga, Obishima hits him with Asteroid without even looking and causes him to bail out. Obishima then fights Kuga in the wirezone. Kuga uses a Grasshopper/Scorpion projectile combination to weaken her, distracting her so he could take the kill, ultimately causing her to bail out.

Post Round 8
Nasu Squad 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 meet up with Tadaomi Kanda for dinner to bid him farewell.

Away Mission Test Arc
Obishima is selected to be on Ōji's away test squad.