Calvin

 is a character in I Shall Survive Using Potions! (Light Novel) series written by FUNA.

Background
 was once a guard serving Cedric until he was injured. Kaoru Nagase created a Tears of a Goddess potion to heal him.

Personality
 is said to be like another brother to Cedric and it shown that the two care deeply for one another.

Appearance
 has short trimmed hair and dark-colored eyes. He is seen wearing a dapper outfit and used to use a wooden cane to walk around.