One day, Lan Xia goes to her classmate Hai Feng’s house to stay overnight. They start to feel awkward around each other without really knowing why, but slowly get closer through insignificant words exchanged while doing a jigsaw puzzle of the world map. The next morning, Hai Feng realizes that Lan Xia has left without saying anything and sets out to follow her. A memory of a summer in which the world belonged to the two of them alone, if only for a moment

A Japanese man and a young Taiwanese boy. Encounters and love happen in the frame of the screen. Even if the epidemic limits the connection between people, it can't restrain the destined romance.

克・亜樹の長寿ラブコメ漫画を、人気グラビアアイドルの森下悠里主演で実写映画化した「映画版　ふたりエッチ」「映画版　ふたりエッチ　セカンド・キッス」に続くシリーズ第3作「トリプル・ラブ」と第4作「ラブフォーエバー」を、劇場公開用に1本にまとめた特別編集版。