Crocodile-sempai is a crocodile character with emerald-green scaly skin and a muscular, robust build. His long, powerful tail displays a striking black checkerboard pattern, lined with rows of jagged spines tapering to sharp points, mirroring the natural armor of his real-world counterparts.

He sports a sleek black biker jacket accented by white checkered detailing on its spiked cuffs, paired with heavy-duty black boots flaunting angular V-cut tops and silver buckle closures. Frayed, side-ripped blue jeans with functional pockets and fingerless gloves dyed denim-blue complete his urban ensemble.

A resident of the Daina-So apartment complex, he shares a compact one-room space with dinosaur roommates, navigating a routine that balances part-time shifts with laid-back pastimes. His days often involve casual hangouts and collaborative errands with neighbors, blending into the rhythm of contemporary communal living.

Known for his easygoing demeanor, Crocodile-sempai thrives in group activities, fostering a natural camaraderie through shared jokes, impromptu adventures, and a collaborative spirit that weaves through the ordinary moments of his life.