Shokugyou Tenshi

A man belonging to the Midori, a people who transform into trees upon death, struggles to lead a typical existence despite the challenges his heritage presents. A young boy discovers that his first spellbook transforms into a pixie as soon as he opens it, complicating his journey in a magical realm. Another boy must leave behind his cat when he relocates, only to be surprised years later by a return that leads him to a peculiar world dominated by cats. Lastly, a boy avoids a speeding ticket by accepting an experimental drug, only to wake up the next day with white wings that grow in size each time he makes a mistake.