About me: Alder tree spirit Transient that appeared from the world of Tir na Nog. He attends as a medical department graduate student researcher, though he stands out for speaking like he's someone older, As a result he's despised as a useless troublemaker by the other labs, and his kouhai see him as a jerk senpai who will dump tons of work on them because they're young. Leib tends to grumble to himself about the latest slang being used as inappropriate.