百花王学園で勝ち組となり、つづらを家畜から解放すると決めた芽亜里が考えたのは、賭場を開いて胴元になること。そのために学園で一番人気のない賭場を奪うことを思いつく。ターゲットにしたのは戸隠雪見（萩原みのり）が部長を務める文芸部の賭場。そこに乗り込む芽亜里たちだったが、思わぬ来客に遭遇する。生徒会風紀委員長、聚楽幸子（長井短）とその家畜、佐渡みくら（佐々木美玲）。使用料を滞納している文芸部の賭場を没収しにきたのだ。そんな中、芽亜里は聚楽にこの賭場を自分が引き受けると驚きの提案をする。その申し出を面白がった聚楽はその条件として、芽亜里と戸隠のギャンブルを提案。負けた方に文芸部が抱える借金を抱えるという条件付きだ。こうして、芽亜里の第２戦が幕を開ける―。
메아리는 가장 인기 없는 문예부의 도박판의 주인이 되기로 결심한다. 학생회 임원 쥬라쿠가 문예부의 도박판을 몰수하러 오자, 메아리는 문예부장과 겜블을 한다.
Determined to become a winner at Hyakkaou Academy and free Tsuzura from her "housepet" status, Mary devised a plan to open her own gambling den and become its master. To do so, she targeted the least popular gambling den in the school, run by the Literary Club under the leadership of Yukimi Togakushi. Mary and her group stormed the club, only to encounter unexpected visitors: the Student Council Disciplinary Committee Chair, Sachiko Juraku, and her "housepet," Mikura Sado. They had come to seize the Literary Club's gambling den due to unpaid usage fees. In the midst of this, Mary made a shocking proposal to Sachiko, offering to take over the gambling den herself. Intrigued by her boldness, Sachiko agreed, but set a condition: Mary and Yukimi would face off in a gamble, with the loser taking on the Literary Club's debts. Thus, Mary's second battle began.
