Kimiarite Koufuku summary: 君ありて幸福 / You Are My Happiness / Hạnh phúc là khi có Người Yokoi is your average college student with a slightly unusual job. After class he tends to a food stall in a hard to reach park. His food is hearty and cheap, but as he's young he doesn't have a liquor license. One night while working his booth, an unusual customer walks in. Sakuma has a tail and wings and is extremely thirsty. Yokoi offers a meal, but that isn't enough to satiate Sakuma. So when Sakuma offers Yokoi a treat, the college student's life starts to long for something different also...