Atsui hibi manga

Atsui Hibi summary:

From Ochibichan: One-shots collection : 1- Atsui Hibi When Kuniyoshi was on his way home, he saw honour student, Ikeda, in the river looking for his notebook. Then, the girl who picked up the notebook, Murozono appears and she has come to know about the ‘murder-plans’ written in it… 2- Flower's marking 3- Cold days like before 4- Nameless Guest