Constellation:

Character:

Naoshi represents the Leo. He is Tsukiko's homeroom teacher and the advisor for the archery club. He is energetic and enjoys the "youth" part of high school since he spent high school mostly studying, and because of that, a lot of students can't take him seriously and often play pranks on him. Naoshi's best friend, Hiroki, got him to enjoy high school, but Hiroki was hit by a car saving the girl he liked

Source from Wikipeida