Zutto Kienai Yakusoku Wo, Kimi to Yuki No Furu Umi De (Ketai Shosetsu Bunko B Ka 2-1 No Ichigo) [Light Novel]

[Machine Translation] Nagisa has loved her kind and cool childhood friend Yukio since she was little. When he confesses his love to her upon passing high school, he finds out that Yukio also likes Nagisa, and they end up going out together. On his birthday, he gave Nagisa a diamond earring that means "eternal bond," and kissed her on the ring finger of her left hand, saying, "I'll reserve this place for you, too. One day, however, a tumor is discovered in Yukio's brain. Yukio knows that she has only a few days to live and says goodbye to him.... The two love each other to the end, and the miraculous ending will make you cry out loud!

渚は小さい頃から、優しくてかっこいい幼なじみの雪緒が好き。高校合格をきっかけに告白すると、なんと雪緒も渚が好きだったことがわかり、晴れて付き合うことに。誕生日には“永遠の絆”という意味を持つダイヤのピアスを渚に贈って『ここも俺が予約しておくから』と左手の薬指にキスしたり、溺愛してくれる雪緒と毎日幸せに過ごしていた。だけど、ある日雪緒の脳に腫瘍が見つかってしまう。自分が余命わずかだと知った雪緒は別れを告げるが...。最後まで想いあうふたりのまっすぐな愛と、奇跡のラストに大号泣!!