Some believe that Kaigaku is looking at tomatoes in this scene xd, but it also seems that what Kaigaku is looking at is a plant known as the Chinese lantern, which translates in Japanese as "demon lantern"
Hōzuki, which is written with the kanji (鬼灯) 1/6
Don't feel too bad when there are people who hate your favorite things. most people on this site have ass taste and barely give any fuck about artistic values, anw...