Have you ever spent your entire youth loving someone? Even if you know that he doesn't like you, you don't want to admit it, don't want to give up, humble yourself to the dust, carefully hold your heart with both hands again and again, only to be ruined by the other person again and again, watching him cry for others, laugh for others, and finally pick up the already riddled with holes. I endured the pain of piercing my heart and mended it, and left with nostalgia. It wasn't until I met another person that I realized that love is not only bitter, it is also sweet to the heart. The feeling of being loved by someone with their life turns out to be so beautiful... If you like him too. However, when the person you once loved with your life comes back to you, how do you choose? Should you give your regretful first love a perfect ending that you care about most, or should you choose the person who has always been with you? Or... Just leave like this? If I had known earlier, wouldn't it, everything would have been different?