It's a brawl with Kazuya and Miki's ex, but how will they settle things? A relationship is never smooth. Another hurdle presents itself when their friends' relationship is on the rocks. But never fear, two guest characters from Promise to Marry Me When I'm Older make an appearance to hear out their troubles.
- Author: Satou Yuuki
- Pages: 40
- Japanese Title: 初恋今恋ラブレター５
- Romaji Title: Hatsukoi Ima Koi Love Letter 5