Kaeru is the first Toad that Hiroshi saw. Kaeru didn't like Hiroshi that much when he was younger but, along the years Kaeru has taken a liking to Hiroshi. Hiroshi perfers to summon Kaeru most times because they have a for ever lasting friendship.
When Kaeru was young he wasn't the best warrior toad. He had some troubles with techniques and he overall didn't care. He just didn't want to do anything but sit around and relax. He was a lazy toad at a young age.
Later in life he understood the meaning of being a warrior toad was. He took responsibility and trained extensively. This was due to him seeing Gambuta being in the war and saving lives. He looked up to him with the utmost respect.
Kaeru is now a normal size for his type of frog. He isn't taller then Gambuta but he has become Gambuta's right hand man with in the Warrior Toads.
Kaeru is an oragan frog with blue spots acrose his body. He is about 8 feet high. And he wears a gi such as Gambuta does.
Kaeru is more of the friendly relaxed type of character. He still doesn't care for much but when he battles, he get hyped up for it. And don't call him a frog. He hates being called that.
Since Kaeru is a Toad he can't do hand seals very well. So the Sage Toads taught him how to convert hand selas into his own. They are funky looking but works as the same. This will allow Kaeru to use techniques at the same amount of hand seals the technique would normally need.