[Sunred]

Quote:

Originally Posted by DreamSword

isnt that the name of that popular fast food restaurant

Close. That would be Five Guys.

Fiveman is kinda generic. As an example, the designs are decent yet lack that pizazz one expects from a sentai suit. I mean the only differentiating element other than the colors are that their foreheads have the graphics of their respective school subject.
That said, I do love the setup of them being the first family sentai as well as the first sentai to be all teachers, a stark contrast to the previous Turboranger. Heck their names relate to their expertise as elementary school teachers:
Gaku/Five Red is a science teacher. Gaku depending on how it is used as a word is equivalent to the suffix"-ology", while independently it means to learn or academics. His forehead symbol is an atom.
Ken/Five Blue is the phys ed teacher. His name derives from the word Kenkou(健康) which means health. His forehead symbol is a person swimming.
Fumiya/Five Black is the Japanese teacher. The Fumi in Fumiya means language/lettter/literature depending on usage. His forehead symbol is the kanji 話.
Kazumi/Five Pink is the math teacher. The Kazu in Kazumi means number or count. Her forehead symbol is the *, the symbol used for multiplication in calculators.
Remi/Five Yellow is the music teacher. Her name is wordplay on RE and MI, two of the seven solfège syllables in a major scale: DO, RE, MI, FA, SOL, LA, and TI. Her forehead symbol is a musical note.

Fun fact, Five Black and Five Yellow were twins, and the two in real life after the show ended got married.