第4話: 優は小泉さんを西洋料理店へ追いかけるが、そこで気取った男性と出会う
2018年1月25日 放送
One day, Koizumi-san leaves school saying that she has something to do. Yuu is doesn't think anything of it, sure that she is talking about ramen again. But of course, Yuu tails her again, and she sees Koizumi-san waiting for someone in front of a fancy western restaurant. When a dashing man appears she yells "Koizumi-san, don't!" (Source: Crunchyroll)