Heihu is the daughter of the Destined One and Pingping and Vilight's master, trainer, and rider. She has her mother's appearance. She wears a black dress with white flowers painted on it.
Heihu meets the Allstar Rangers after the defeat of Dr. Nefarious. Raiden and her gang travel to the Monkey King's Mountain to recruit the Destined One into the Allstars group (the surviving heroes from PlayStation Allstars). Heihu greets them warmly and proudly joins the Rangers.
Heihu is a silly, humorous, and fun-loving girl who enjoys playing and meeting new creatures. She is also adventurous and prideful and sees the world as mysterious and has a desire to travel different universes. She is often flirty and shy.
Heihu bonds with a Violetmizutsune named Vilight. Vilight is first seen when Heihu travels to the Monster Hunter Universe as an initiation ceremony into the Rangers, challenged in taming a beast. She is enchanted by a Violet Mizutune, naming her Vilight, stating she adores her violet colors, lighting up a room. Vilight is not hesitant on befriending Heihu. Vilight is a calm and rather playful mizutune. Though she is more far more protective of her master, playing into an adoptive mother figure than a loyal pet. Vilight also shows interest in Ice Blister, greeting him with a playful trill, a smile, and a nod.
