再见了，橡果兄弟！ グッバイ、ドン・グリーズ！ / 再见了，橡果兄弟！－奇迹的暑假－(台) / 再见了，夏日冒险 / Goodbye, Don Glees!

マッドハウスがアニメーション制作を手がける本作は、少年たち“ドン?グリーズ”の奇跡のような出会いを描く物語。日本だけにとどまらず、炎と氷の国?アイスランドも舞台となる。

Teen misfits Roma, Toto, and Drop call themselves the "Don Glees," an informal name for their backyard adventures. One day, when the trio gets blamed for a nearby forest fire, they set off into the woods to prove their innocence. As disaster strikes their expedition, tensions flare between the friends as they realize that growing up has taken them on wildly different paths in life. Director Atsuko Ishizuka follows up her critically acclaimed series A Place Further Than the Universe with her first original feature film. With luminescent animation and lush backdrops, "Goodbye, Don Glees!" is a tender coming-of-age story about the fearlessness of being young and the bittersweet journey of self-discovery.