Gentlemen, I think we need to go wider. More Ume-sensei is always a good thing.
Miyo-chan seems a bit sad, always spacing out and is feeling thirsty, making everyone around her worried a little. Yamato-kun is determined to know what happened.
Link:
[The Doujinshi & Manga Lexicon](https://www.doujinshi.org/book/308516/09SUMMER/)
