Komari hat schließlich die Erinnerungen an ihren älteren Bruder zurückerlangt – und das hat sie in einen Zustand tragischer Verwirrung versetzt. Mit der Unterstützung der Little Busters macht Riki sich auf, Komaris fröhliches Lächeln zurückzuholen.
Komari is in shock from remembering her dead brother Takuya, recalling the time they spent together in the hospital. In Komari's recollection, Takuya writes a picture book for her, and tells her that he might be gone when she wakes, but tells her not to be sad because it will all be a dream. When Komari awakens, her brother has died, but she remembers what he said, and does not despair. As a defense mechanism, Komari begins to believe that Riki is her brother. Kyousuke tells Riki that if anybody can save Komari, Riki can. Riki speaks with Kojirō, who tells him that this happens every time Komari witnesses death, and that she will return to normal in a few weeks. However, Riki is determined to save Komari, and adds to Takuya's story book. Riki forces Komari to accept her brother's death, but through his extension of Takuya's book, shows Komari that she has friends to support her.
理樹との思い出探しから帰った小毬は、ついに兄のことを全て思い出す。
だが、その真実は小毬にとってあまりに過酷で、彼女は混乱してしまう。
フラッシュバックを起こすたびに辛い思い出を夢と思うことでその悲しみから身を守ってきた小毬。
そんな彼女を前になすすべがない理樹だったが、恭介の励ましで小毬の笑顔を取り戻そうと決意。
リトルバスターズの仲間たちが優しく見守る中、理樹は小毬を助けるために動き出す。
사소한 계기를 기폭제로 코마리는 무너지고 말았다.
모든 과거의 진실을 떠올리고 만 코마리는 착란증세를 보이며 리키를 오빠라고 부르게 된다.
그러나 쿄스케와 리틀 버스터즈 친구들은 안타까움과 후회에 빠진 리키의 등을 살포시 다독여 주었는데...
다시금 용기를 얻은 리키는 코마리의 힘이 되기 위해 한 가지 결심을 한다.
一切事情回忆起来了的小毬，对这个残酷的现实感到混乱。为了让小毬恢复以前的笑容，在恭介的激励下理树下定了决心在Little Busters！的伙伴们精心的陪伴下，理树为帮助小毬开始行动……
