Chuchu

Chuchu (チュチュ) is a small, quirk-using ferret that resides at The Eternal Summer.

Appearance
Chuchu is a ferret of average appearance, being practically of no particular distinguishment, save for a small nick on the right ear. Chuchu is also slightly larger than the average ferret.

In terms of ferret appearances, Chuchu has brown and white hair and a long tail. It also has two domino mask-like patches around its eyes.

Name
His name is Chuchu (チュチュ). It is wordplay on three separate things:
 * Chuchu is similar in pronunciation to choo choo, onomatopoeia used for the sound a steam train's whistle emits, referencing his first appearance.
 * Chuchu bares similarities to the Japanese onomatopoeia used for the squeaking of small animals.
 * Chuchu can also be obliquely compared to the Japanese sound effect "chu", onomatopoeia used for kissing or cuddling noises.

Personality
Chuchu is a fairly docile ferret. It enjoys napping (which it does so throughout most of the day) and eating food, which the members of the Organisation provide it with. Chuchu's favourite meal is beef sobiro, but will eat mostly anything meat-based. Chuchu will also occasionally catch mice and small birds outside the restaurant.

Quirk
Combination (組み合 Kumigo): When Chuchu presses himself against an object and activates Combination, he combines with the object, resulting in a product that resembles something halfway between the combined object and Chuchu himself.

Combining with objects can result in Chuchu losing or gaining additional limbs or body parts. Regardless of what object Chuchu combines with, Chuchu retains at least his head; usually, he retains all his limbs, but it isn't uncommon to lose limbs if Chuchu combines with a particularly short object, or gain limbs if he combines with a particularly long one.

Upon combining with an object, Chuchu gains the physical characteristics of the combined object. For example, when Chuchu combined with a subway train, Chuchu gained an extremely fast running speed, in addition to functioning train doors on the side of its fur which lead into an intact train compartment interior.

Trivia

 * Chuchu's quirk is very similar to that of another My Hero Academia character, Monster Cat.