Hatsukoi Ima Koi Love Letter

Kazuya Kawaguchi has had feelings for Miki Toda since elementary school but has never managed to give her a love letter. Years later, they meet at an alumni event, where Kazuya is surprised to find that Miki doesn't recognize him. He hides his disappointment, while Miki has a faint memory of him and is also unsettled by his apparent lack of recognition. As both struggle with their confusion, Kazuya finally works up the courage to ask Miki out. Their relationship begins with this unexpected encounter, rooted in a history of unexpressed emotions and a collection of love letters never sent, now long overdue.