It'll Become Your Greatest Partner.With Hotaru's debt paid, there is no need for her to stay with Matsuoka and Yukimura so she leaves the team and continues her normal life, but is surprised with a visit from Yukimura at her school. He tells her that he is just there to deliver a manga book, but in actuality wants her to realize that she has come to love survival games. Upon heading home that day, Hotaru contemplates her decision about leaving the team and notices a mysterious envelope delivered to her mailbox. Realizing that the letter is addressed to Yukimura, she goes to his home to deliver it only to come across his vast collection of survival game equipment. Seeing it all, Hotaru remembers her love for the game, but is surprised by the sudden arrival of Yukimura and Mastuoka. The two welcome her officially to the team much to her delight. She delivers the letter which is actually a special invitation given to a chosen few who have earned the right to be in a special Survival Game tournament called TCG or Top Combat Game. Only the best of the best teams are given the privilege to join this game and "Team Toy Gun Gun" is one of the luck few. On Matsuoka's call, Yukimura goes on to help Hotaru buy her own Survival Game gun, as a commemoration of her joining the team after a small pep talk from her seniors. However, when Yukimura sees a game he really wants to buy, he leaves Hotaru with a few words and runs off on his own leaving Hotaru to go to the store alone. Lost and confused, she meets a seemingly kind stranger who seems very knowledgeable about survival games and guns, and advises her on buying a gun. Realizing just how pricey buying a gun and supplies actually is, Hotaru decides to use the envelope of money Matsuoka gave her earlier just to realize it holds only 1000 yen and a note. Noticing this, the mysterious stranger asks Hotaru if she was left with any instructions and remembers the words Yukimura told her before he ran off. After saying the phrase, the manager of the store takes Hotaru to the back to test her skills with the chosen gun. Meanwhile, outside, Yukimura returns from having left Hotaru alone and runs into the stranger that helped her out, someone he knows all too well, Midori Nagamasa.