How to trigger Longji 2.3?

On September 4th, 65438, we received Mishima's sideline task "チートとばれた".

2. Then go to "メメントス" and fight against the shadow of Gendao (all our attacks are ineffective, we can't beat him for a while and then retreat).

3. Continue to go to Shibuya Arcade Hall for information, and then go to Akihabara Arcade Hall to meet Shinya Oda.

4. After talking with Maeji ODA, go back to the door of the coffee shop and talk with Futaba Sakura.

5. Finally, I went to the arcade hall in Akihabara to talk to Nobuya Oda, and then coop lifted the ban.

6. After unlocking the tower, the protagonist has the ability to get a hit rate of 100% with one bullet and knock it down.

7. Use the tower's ability to shadow from the beginning.